Merging upstream version 126.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

19 files changed, 450 insertions, 388 deletions

diff --git a/toolkit/components/pdfjs/content/PdfJs.sys.mjs b/toolkit/components/pdfjs/content/PdfJs.sys.mjs
index fd6757737e..430a153ae2 100644
--- a/toolkit/components/pdfjs/content/PdfJs.sys.mjs
+++ b/toolkit/components/pdfjs/content/PdfJs.sys.mjs
@@ -242,7 +242,7 @@ export var PdfJs = {
   },
 
   // nsIObserver
-  observe(aSubject, aTopic, aData) {
+  observe() {
     this.checkIsDefault();
   },
 };
diff --git a/toolkit/components/pdfjs/content/PdfJsNetwork.sys.mjs b/toolkit/components/pdfjs/content/PdfJsNetwork.sys.mjs
index dd3ebc6bf5..a36f889539 100644
--- a/toolkit/components/pdfjs/content/PdfJsNetwork.sys.mjs
+++ b/toolkit/components/pdfjs/content/PdfJsNetwork.sys.mjs
@@ -33,7 +33,7 @@ export class NetworkManager {
     this.getXhr =
       args.getXhr ||
       function NetworkManager_getXhr() {
-        return new XMLHttpRequest();
+        return new XMLHttpRequest({ mozAnon: false });
       };
 
     this.currXhrId = 0;
@@ -79,7 +79,7 @@ export class NetworkManager {
     xhr.responseType = "arraybuffer";
 
     if (args.onError) {
-      xhr.onerror = function (evt) {
+      xhr.onerror = function () {
         args.onError(xhr.status);
       };
     }
@@ -109,7 +109,7 @@ export class NetworkManager {
     }
   }
 
-  onStateChange(xhrId, evt) {
+  onStateChange(xhrId) {
     var pendingRequest = this.pendingRequests[xhrId];
     if (!pendingRequest) {
       // Maybe abortRequest was called...
diff --git a/toolkit/components/pdfjs/content/PdfJsTelemetry.sys.mjs b/toolkit/components/pdfjs/content/PdfJsTelemetry.sys.mjs
index 16e4e85d58..4724f25c33 100644
--- a/toolkit/components/pdfjs/content/PdfJsTelemetry.sys.mjs
+++ b/toolkit/components/pdfjs/content/PdfJsTelemetry.sys.mjs
@@ -47,7 +47,7 @@ export class PdfJsTelemetry {
   }
 
   static onTimeToView(ms) {
-    Glean.pdfjs.timeToView.accumulateSamples([ms]);
+    Glean.pdfjs.timeToView.accumulateSingleSample(ms);
   }
 
   static onEditing({ type, data }) {
@@ -99,9 +99,9 @@ export class PdfJsTelemetry {
             Glean.pdfjsEditingHighlight.method[data.methodOfCreation].add(1);
             Glean.pdfjsEditingHighlight.color[data.color].add(1);
             if (data.type === "free_highlight") {
-              Glean.pdfjsEditingHighlight.thickness.accumulateSamples([
-                data.thickness,
-              ]);
+              Glean.pdfjsEditingHighlight.thickness.accumulateSingleSample(
+                data.thickness
+              );
             }
             break;
           case "color_changed":
@@ -109,9 +109,9 @@ export class PdfJsTelemetry {
             Glean.pdfjsEditingHighlight.colorChanged.add(1);
             break;
           case "thickness_changed":
-            Glean.pdfjsEditingHighlight.thickness.accumulateSamples([
-              data.thickness,
-            ]);
+            Glean.pdfjsEditingHighlight.thickness.accumulateSingleSample(
+              data.thickness
+            );
             Glean.pdfjsEditingHighlight.thicknessChanged.add(1);
             break;
           case "deleted":
diff --git a/toolkit/components/pdfjs/content/PdfStreamConverter.sys.mjs b/toolkit/components/pdfjs/content/PdfStreamConverter.sys.mjs
index 2a56cbb935..ce9c6898e3 100644
--- a/toolkit/components/pdfjs/content/PdfStreamConverter.sys.mjs
+++ b/toolkit/components/pdfjs/content/PdfStreamConverter.sys.mjs
@@ -296,7 +296,7 @@ class ChromeActions {
     }
   }
 
-  download(data, sendResponse) {
+  download(data) {
     const { originalUrl, options } = data;
     const blobUrl = data.blobUrl || originalUrl;
     let { filename } = data;
@@ -361,7 +361,7 @@ class ChromeActions {
     actor.sendAsyncMessage("PDFJS:Parent:getNimbus");
     Services.obs.addObserver(
       {
-        observe(aSubject, aTopic, aData) {
+        observe(aSubject, aTopic) {
           if (aTopic === "pdfjs-getNimbus") {
             Services.obs.removeObserver(this, aTopic);
             sendResponse(aSubject && JSON.stringify(aSubject.wrappedJSObject));
@@ -545,7 +545,7 @@ class RangedChromeActions extends ChromeActions {
       }
     };
     var getXhr = function getXhr() {
-      var xhr = new XMLHttpRequest();
+      var xhr = new XMLHttpRequest({ mozAnon: false });
       xhr.addEventListener("readystatechange", xhr_onreadystatechange);
       return xhr;
     };
@@ -790,7 +790,7 @@ PdfStreamConverter.prototype = {
    */
 
   // nsIStreamConverter::convert
-  convert(aFromStream, aFromType, aToType, aCtxt) {
+  convert() {
     throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
@@ -1063,7 +1063,7 @@ PdfStreamConverter.prototype = {
     // request(aRequest) below so we don't overwrite the original channel and
     // trigger an assertion.
     var proxy = {
-      onStartRequest(request) {
+      onStartRequest() {
         listener.onStartRequest(aRequest);
       },
       onDataAvailable(request, inputStream, offset, count) {
diff --git a/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs b/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs
index a11d68ef02..32bb3d65b7 100644
--- a/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs
+++ b/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs
@@ -187,7 +187,7 @@ export class PdfjsParent extends JSWindowActorParent {
       let newBrowser = aEvent.detail;
       newBrowser.addEventListener(
         "EndSwapDocShells",
-        evt => {
+        () => {
           this._hookupEventListeners(newBrowser);
         },
         { once: true }
diff --git a/toolkit/components/pdfjs/content/build/pdf.mjs b/toolkit/components/pdfjs/content/build/pdf.mjs
index 4e51efdb78..dbba618862 100644
--- a/toolkit/components/pdfjs/content/build/pdf.mjs
+++ b/toolkit/components/pdfjs/content/build/pdf.mjs
@@ -70,7 +70,6 @@ __webpack_require__.d(__webpack_exports__, {
   PasswordResponses: () => (/* reexport */ PasswordResponses),
   PermissionFlag: () => (/* reexport */ PermissionFlag),
   PixelsPerInch: () => (/* reexport */ PixelsPerInch),
-  PromiseCapability: () => (/* reexport */ PromiseCapability),
   RenderingCancelledException: () => (/* reexport */ RenderingCancelledException),
   UnexpectedResponseException: () => (/* reexport */ UnexpectedResponseException),
   Util: () => (/* reexport */ Util),
@@ -789,24 +788,6 @@ function getModificationDate(date = new Date()) {
   const buffer = [date.getUTCFullYear().toString(), (date.getUTCMonth() + 1).toString().padStart(2, "0"), date.getUTCDate().toString().padStart(2, "0"), date.getUTCHours().toString().padStart(2, "0"), date.getUTCMinutes().toString().padStart(2, "0"), date.getUTCSeconds().toString().padStart(2, "0")];
   return buffer.join("");
 }
-class PromiseCapability {
-  #settled = false;
-  constructor() {
-    this.promise = new Promise((resolve, reject) => {
-      this.resolve = data => {
-        this.#settled = true;
-        resolve(data);
-      };
-      this.reject = reason => {
-        this.#settled = true;
-        reject(reason);
-      };
-    });
-  }
-  get settled() {
-    return this.#settled;
-  }
-}
 let NormalizeRegex = null;
 let NormalizationMap = null;
 function normalizeUnicode(str) {
@@ -820,6 +801,17 @@ function getUuid() {
   return crypto.randomUUID();
 }
 const AnnotationPrefix = "pdfjs_internal_id_";
+const FontRenderOps = {
+  BEZIER_CURVE_TO: 0,
+  MOVE_TO: 1,
+  LINE_TO: 2,
+  QUADRATIC_CURVE_TO: 3,
+  RESTORE: 4,
+  SAVE: 5,
+  SCALE: 6,
+  TRANSFORM: 7,
+  TRANSLATE: 8
+};
 
 ;// CONCATENATED MODULE: ./src/display/base_factory.js
 
@@ -1742,11 +1734,11 @@ class HighlightToolbar {
     const button = document.createElement("button");
     button.className = "highlightButton";
     button.tabIndex = 0;
-    button.setAttribute("data-l10n-id", `pdfjs-highlight-floating-button`);
+    button.setAttribute("data-l10n-id", `pdfjs-highlight-floating-button1`);
     const span = document.createElement("span");
     button.append(span);
     span.className = "visuallyHidden";
-    span.setAttribute("data-l10n-id", "pdfjs-editor-highlight-button-label");
+    span.setAttribute("data-l10n-id", "pdfjs-highlight-floating-button-label");
     button.addEventListener("contextmenu", noContextMenu);
     button.addEventListener("click", () => {
       this.#uiManager.highlightSelection("floating_button");
@@ -3431,6 +3423,7 @@ class AnnotationEditor {
   #editToolbar = null;
   #focusedResizerName = "";
   #hasBeenClicked = false;
+  #initialPosition = null;
   #isEditing = false;
   #isInEditMode = false;
   #isResizerEnabledForKeyboard = false;
@@ -3656,12 +3649,14 @@ class AnnotationEditor {
     this.#translate(this.parentDimensions, x, y);
   }
   translateInPage(x, y) {
+    this.#initialPosition ||= [this.x, this.y];
     this.#translate(this.pageDimensions, x, y);
     this.div.scrollIntoView({
       block: "nearest"
     });
   }
   drag(tx, ty) {
+    this.#initialPosition ||= [this.x, this.y];
     const [parentWidth, parentHeight] = this.parentDimensions;
     this.x += tx / parentWidth;
     this.y += ty / parentHeight;
@@ -3688,6 +3683,9 @@ class AnnotationEditor {
       block: "nearest"
     });
   }
+  get _hasBeenMoved() {
+    return !!this.#initialPosition && (this.#initialPosition[0] !== this.x || this.#initialPosition[1] !== this.y);
+  }
   getBaseTranslation() {
     const [parentWidth, parentHeight] = this.parentDimensions;
     const {
@@ -4911,7 +4909,6 @@ class FontLoader {
 }
 class FontFaceObject {
   constructor(translatedData, {
-    isEvalSupported = true,
     disableFontFace = false,
     ignoreErrors = false,
     inspectFont = null
@@ -4920,7 +4917,6 @@ class FontFaceObject {
     for (const i in translatedData) {
       this[i] = translatedData[i];
     }
-    this.isEvalSupported = isEvalSupported !== false;
     this.disableFontFace = disableFontFace === true;
     this.ignoreErrors = ignoreErrors === true;
     this._inspectFont = inspectFont;
@@ -4975,22 +4971,72 @@ class FontFaceObject {
         throw ex;
       }
       warn(`getPathGenerator - ignoring character: "${ex}".`);
+    }
+    if (!Array.isArray(cmds) || cmds.length === 0) {
       return this.compiledGlyphs[character] = function (c, size) {};
     }
-    if (this.isEvalSupported && util_FeatureTest.isEvalSupported) {
-      const jsBuf = [];
-      for (const current of cmds) {
-        const args = current.args !== undefined ? current.args.join(",") : "";
-        jsBuf.push("c.", current.cmd, "(", args, ");\n");
+    const commands = [];
+    for (let i = 0, ii = cmds.length; i < ii;) {
+      switch (cmds[i++]) {
+        case FontRenderOps.BEZIER_CURVE_TO:
+          {
+            const [a, b, c, d, e, f] = cmds.slice(i, i + 6);
+            commands.push(ctx => ctx.bezierCurveTo(a, b, c, d, e, f));
+            i += 6;
+          }
+          break;
+        case FontRenderOps.MOVE_TO:
+          {
+            const [a, b] = cmds.slice(i, i + 2);
+            commands.push(ctx => ctx.moveTo(a, b));
+            i += 2;
+          }
+          break;
+        case FontRenderOps.LINE_TO:
+          {
+            const [a, b] = cmds.slice(i, i + 2);
+            commands.push(ctx => ctx.lineTo(a, b));
+            i += 2;
+          }
+          break;
+        case FontRenderOps.QUADRATIC_CURVE_TO:
+          {
+            const [a, b, c, d] = cmds.slice(i, i + 4);
+            commands.push(ctx => ctx.quadraticCurveTo(a, b, c, d));
+            i += 4;
+          }
+          break;
+        case FontRenderOps.RESTORE:
+          commands.push(ctx => ctx.restore());
+          break;
+        case FontRenderOps.SAVE:
+          commands.push(ctx => ctx.save());
+          break;
+        case FontRenderOps.SCALE:
+          assert(commands.length === 2, "Scale command is only valid at the third position.");
+          break;
+        case FontRenderOps.TRANSFORM:
+          {
+            const [a, b, c, d, e, f] = cmds.slice(i, i + 6);
+            commands.push(ctx => ctx.transform(a, b, c, d, e, f));
+            i += 6;
+          }
+          break;
+        case FontRenderOps.TRANSLATE:
+          {
+            const [a, b] = cmds.slice(i, i + 2);
+            commands.push(ctx => ctx.translate(a, b));
+            i += 2;
+          }
+          break;
       }
-      return this.compiledGlyphs[character] = new Function("c", "size", jsBuf.join(""));
     }
-    return this.compiledGlyphs[character] = function (c, size) {
-      for (const current of cmds) {
-        if (current.cmd === "scale") {
-          current.args = [size, -size];
-        }
-        c[current.cmd].apply(c, current.args);
+    return this.compiledGlyphs[character] = function glyphDrawer(ctx, size) {
+      commands[0](ctx);
+      commands[1](ctx);
+      ctx.scale(size, -size);
+      for (let i = 2, ii = commands.length; i < ii; i++) {
+        commands[i](ctx);
       }
     };
   }
@@ -7951,7 +7997,7 @@ class TextLayerRenderTask {
     this._reader = null;
     this._textDivProperties = textDivProperties || new WeakMap();
     this._canceled = false;
-    this._capability = new PromiseCapability();
+    this._capability = Promise.withResolvers();
     this._layoutTextParams = {
       prevFontSize: null,
       prevFontFamily: null,
@@ -8019,7 +8065,11 @@ class TextLayerRenderTask {
     }
   }
   _render() {
-    const capability = new PromiseCapability();
+    const {
+      promise,
+      resolve,
+      reject
+    } = Promise.withResolvers();
     let styleCache = Object.create(null);
     if (this._isReadableStream) {
       const pump = () => {
@@ -8028,13 +8078,13 @@ class TextLayerRenderTask {
           done
         }) => {
           if (done) {
-            capability.resolve();
+            resolve();
             return;
           }
           Object.assign(styleCache, value.styles);
           this._processItems(value.items, styleCache);
           pump();
-        }, capability.reject);
+        }, reject);
       };
       this._reader = this._textContentSource.getReader();
       pump();
@@ -8044,11 +8094,11 @@ class TextLayerRenderTask {
         styles
       } = this._textContentSource;
       this._processItems(items, styles);
-      capability.resolve();
+      resolve();
     } else {
       throw new Error('No "textContentSource" parameter specified.');
     }
-    capability.promise.then(() => {
+    promise.then(() => {
       styleCache = null;
       render(this);
     }, this._capability.reject);
@@ -8241,7 +8291,7 @@ class MessageHandler {
   }
   sendWithPromise(actionName, data, transfers) {
     const callbackId = this.callbackId++;
-    const capability = new PromiseCapability();
+    const capability = Promise.withResolvers();
     this.callbackCapabilities[callbackId] = capability;
     try {
       this.comObj.postMessage({
@@ -8263,7 +8313,7 @@ class MessageHandler {
       comObj = this.comObj;
     return new ReadableStream({
       start: controller => {
-        const startCapability = new PromiseCapability();
+        const startCapability = Promise.withResolvers();
         this.streamControllers[streamId] = {
           controller,
           startCall: startCapability,
@@ -8282,7 +8332,7 @@ class MessageHandler {
         return startCapability.promise;
       },
       pull: controller => {
-        const pullCapability = new PromiseCapability();
+        const pullCapability = Promise.withResolvers();
         this.streamControllers[streamId].pullCall = pullCapability;
         comObj.postMessage({
           sourceName,
@@ -8295,7 +8345,7 @@ class MessageHandler {
       },
       cancel: reason => {
         assert(reason instanceof Error, "cancel must have a valid reason");
-        const cancelCapability = new PromiseCapability();
+        const cancelCapability = Promise.withResolvers();
         this.streamControllers[streamId].cancelCall = cancelCapability;
         this.streamControllers[streamId].isClosed = true;
         comObj.postMessage({
@@ -8324,7 +8374,7 @@ class MessageHandler {
         const lastDesiredSize = this.desiredSize;
         this.desiredSize -= size;
         if (lastDesiredSize > 0 && this.desiredSize <= 0) {
-          this.sinkCapability = new PromiseCapability();
+          this.sinkCapability = Promise.withResolvers();
           this.ready = this.sinkCapability.promise;
         }
         comObj.postMessage({
@@ -8362,7 +8412,7 @@ class MessageHandler {
           reason: wrapReason(reason)
         });
       },
-      sinkCapability: new PromiseCapability(),
+      sinkCapability: Promise.withResolvers(),
       onPull: null,
       onCancel: null,
       isCancelled: false,
@@ -8975,7 +9025,7 @@ class PDFDataTransportStreamReader {
         done: true
       };
     }
-    const requestCapability = new PromiseCapability();
+    const requestCapability = Promise.withResolvers();
     this._requests.push(requestCapability);
     return requestCapability.promise;
   }
@@ -9047,7 +9097,7 @@ class PDFDataTransportStreamRangeReader {
         done: true
       };
     }
-    const requestCapability = new PromiseCapability();
+    const requestCapability = Promise.withResolvers();
     this._requests.push(requestCapability);
     return requestCapability.promise;
   }
@@ -9205,7 +9255,7 @@ function getDocument(src) {
   }
   const fetchDocParams = {
     docId,
-    apiVersion: "4.1.342",
+    apiVersion: "4.1.379",
     data,
     password,
     disableAutoFetch,
@@ -9228,7 +9278,6 @@ function getDocument(src) {
   };
   const transportParams = {
     ignoreErrors,
-    isEvalSupported,
     disableFontFace,
     fontExtraProperties,
     enableXfa,
@@ -9294,7 +9343,7 @@ function getDataProp(val) {
 class PDFDocumentLoadingTask {
   static #docId = 0;
   constructor() {
-    this._capability = new PromiseCapability();
+    this._capability = Promise.withResolvers();
     this._transport = null;
     this._worker = null;
     this.docId = `d${PDFDocumentLoadingTask.#docId++}`;
@@ -9335,7 +9384,7 @@ class PDFDataRangeTransport {
     this._progressListeners = [];
     this._progressiveReadListeners = [];
     this._progressiveDoneListeners = [];
-    this._readyCapability = new PromiseCapability();
+    this._readyCapability = Promise.withResolvers();
   }
   addRangeListener(listener) {
     this._rangeListeners.push(listener);
@@ -9588,7 +9637,7 @@ class PDFPageProxy {
     }
     const intentPrint = !!(renderingIntent & RenderingIntentFlag.PRINT);
     if (!intentState.displayReadyCapability) {
-      intentState.displayReadyCapability = new PromiseCapability();
+      intentState.displayReadyCapability = Promise.withResolvers();
       intentState.operatorList = {
         fnArray: [],
         argsArray: [],
@@ -9934,7 +9983,7 @@ class PDFWorker {
     this.name = name;
     this.destroyed = false;
     this.verbosity = verbosity;
-    this._readyCapability = new PromiseCapability();
+    this._readyCapability = Promise.withResolvers();
     this._port = null;
     this._webWorker = null;
     this._messageHandler = null;
@@ -10110,7 +10159,7 @@ class WorkerTransport {
     this._networkStream = networkStream;
     this._fullReader = null;
     this._lastProgress = null;
-    this.downloadInfoCapability = new PromiseCapability();
+    this.downloadInfoCapability = Promise.withResolvers();
     this.setupMessageHandler();
   }
   #cacheSimpleMethod(name, data = null) {
@@ -10171,7 +10220,7 @@ class WorkerTransport {
       return this.destroyCapability.promise;
     }
     this.destroyed = true;
-    this.destroyCapability = new PromiseCapability();
+    this.destroyCapability = Promise.withResolvers();
     this.#passwordCapability?.reject(new Error("Worker was destroyed during onPassword callback"));
     const waitOn = [];
     for (const page of this.#pageCache.values()) {
@@ -10239,7 +10288,7 @@ class WorkerTransport {
       };
     });
     messageHandler.on("ReaderHeadersReady", data => {
-      const headersCapability = new PromiseCapability();
+      const headersCapability = Promise.withResolvers();
       const fullReader = this._fullReader;
       fullReader.headersReady.then(() => {
         if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
@@ -10325,7 +10374,7 @@ class WorkerTransport {
       loadingTask._capability.reject(reason);
     });
     messageHandler.on("PasswordRequest", exception => {
-      this.#passwordCapability = new PromiseCapability();
+      this.#passwordCapability = Promise.withResolvers();
       if (loadingTask.onPassword) {
         const updatePassword = password => {
           if (password instanceof Error) {
@@ -10378,7 +10427,6 @@ class WorkerTransport {
           }
           const inspectFont = params.pdfBug && globalThis.FontInspector?.enabled ? (font, url) => globalThis.FontInspector.fontAdded(font, url) : null;
           const font = new FontFaceObject(exportedData, {
-            isEvalSupported: params.isEvalSupported,
             disableFontFace: params.disableFontFace,
             ignoreErrors: params.ignoreErrors,
             inspectFont
@@ -10639,34 +10687,35 @@ class WorkerTransport {
     });
   }
 }
+const INITIAL_DATA = Symbol("INITIAL_DATA");
 class PDFObjects {
   #objs = Object.create(null);
   #ensureObj(objId) {
     return this.#objs[objId] ||= {
-      capability: new PromiseCapability(),
-      data: null
+      ...Promise.withResolvers(),
+      data: INITIAL_DATA
     };
   }
   get(objId, callback = null) {
     if (callback) {
       const obj = this.#ensureObj(objId);
-      obj.capability.promise.then(() => callback(obj.data));
+      obj.promise.then(() => callback(obj.data));
       return null;
     }
     const obj = this.#objs[objId];
-    if (!obj?.capability.settled) {
+    if (!obj || obj.data === INITIAL_DATA) {
       throw new Error(`Requesting object that isn't resolved yet ${objId}.`);
     }
     return obj.data;
   }
   has(objId) {
     const obj = this.#objs[objId];
-    return obj?.capability.settled ?? false;
+    return !!obj && obj.data !== INITIAL_DATA;
   }
   resolve(objId, data = null) {
     const obj = this.#ensureObj(objId);
     obj.data = data;
-    obj.capability.resolve();
+    obj.resolve();
   }
   clear() {
     for (const objId in this.#objs) {
@@ -10680,10 +10729,9 @@ class PDFObjects {
   *[Symbol.iterator]() {
     for (const objId in this.#objs) {
       const {
-        capability,
         data
       } = this.#objs[objId];
-      if (!capability.settled) {
+      if (data === INITIAL_DATA) {
         continue;
       }
       yield [objId, data];
@@ -10748,7 +10796,7 @@ class InternalRenderTask {
     this.graphicsReady = false;
     this._useRequestAnimationFrame = useRequestAnimationFrame === true && typeof window !== "undefined";
     this.cancelled = false;
-    this.capability = new PromiseCapability();
+    this.capability = Promise.withResolvers();
     this.task = new RenderTask(this);
     this._cancelBound = this.cancel.bind(this);
     this._continueBound = this._continue.bind(this);
@@ -10849,8 +10897,8 @@ class InternalRenderTask {
     }
   }
 }
-const version = "4.1.342";
-const build = "e384df6f1";
+const version = "4.1.379";
+const build = "017e49244";
 
 ;// CONCATENATED MODULE: ./src/shared/scripting_utils.js
 function makeColorComp(n) {
@@ -13708,7 +13756,6 @@ class FreeTextEditor extends AnnotationEditor {
   }
   onceAdded() {
     if (this.width) {
-      this.#cheatInitialRect();
       return;
     }
     this.enableEditMode();
@@ -14085,22 +14132,9 @@ class FreeTextEditor extends AnnotationEditor {
       value,
       fontSize,
       color,
-      rect,
       pageIndex
     } = this.#initialData;
-    return serialized.value !== value || serialized.fontSize !== fontSize || serialized.rect.some((x, i) => Math.abs(x - rect[i]) >= 1) || serialized.color.some((c, i) => c !== color[i]) || serialized.pageIndex !== pageIndex;
-  }
-  #cheatInitialRect(delayed = false) {
-    if (!this.annotationElementId) {
-      return;
-    }
-    this.#setEditorDimensions();
-    if (!delayed && (this.width === 0 || this.height === 0)) {
-      setTimeout(() => this.#cheatInitialRect(true), 0);
-      return;
-    }
-    const padding = FreeTextEditor._internalPadding * this.parentScale;
-    this.#initialData.rect = this.getRect(padding, padding);
+    return this._hasBeenMoved || serialized.value !== value || serialized.fontSize !== fontSize || serialized.color.some((c, i) => c !== color[i]) || serialized.pageIndex !== pageIndex;
   }
 }
 
@@ -15315,10 +15349,8 @@ class HighlightEditor extends AnnotationEditor {
     }
     const div = super.render();
     if (this.#text) {
-      const mark = document.createElement("mark");
-      div.append(mark);
-      mark.append(document.createTextNode(this.#text));
-      mark.className = "visuallyHidden";
+      div.setAttribute("aria-label", this.#text);
+      div.setAttribute("role", "mark");
     }
     if (this.#isFreeHighlight) {
       div.classList.add("free");
@@ -17534,8 +17566,8 @@ class DrawLayer {
 
 
 
-const pdfjsVersion = "4.1.342";
-const pdfjsBuild = "e384df6f1";
+const pdfjsVersion = "4.1.379";
+const pdfjsBuild = "017e49244";
 
 var __webpack_exports__AbortException = __webpack_exports__.AbortException;
 var __webpack_exports__AnnotationEditorLayer = __webpack_exports__.AnnotationEditorLayer;
@@ -17561,7 +17593,6 @@ var __webpack_exports__PDFWorker = __webpack_exports__.PDFWorker;
 var __webpack_exports__PasswordResponses = __webpack_exports__.PasswordResponses;
 var __webpack_exports__PermissionFlag = __webpack_exports__.PermissionFlag;
 var __webpack_exports__PixelsPerInch = __webpack_exports__.PixelsPerInch;
-var __webpack_exports__PromiseCapability = __webpack_exports__.PromiseCapability;
 var __webpack_exports__RenderingCancelledException = __webpack_exports__.RenderingCancelledException;
 var __webpack_exports__UnexpectedResponseException = __webpack_exports__.UnexpectedResponseException;
 var __webpack_exports__Util = __webpack_exports__.Util;
@@ -17583,4 +17614,4 @@ var __webpack_exports__setLayerDimensions = __webpack_exports__.setLayerDimensio
 var __webpack_exports__shadow = __webpack_exports__.shadow;
 var __webpack_exports__updateTextLayer = __webpack_exports__.updateTextLayer;
 var __webpack_exports__version = __webpack_exports__.version;
-export { __webpack_exports__AbortException as AbortException, __webpack_exports__AnnotationEditorLayer as AnnotationEditorLayer, __webpack_exports__AnnotationEditorParamsType as AnnotationEditorParamsType, __webpack_exports__AnnotationEditorType as AnnotationEditorType, __webpack_exports__AnnotationEditorUIManager as AnnotationEditorUIManager, __webpack_exports__AnnotationLayer as AnnotationLayer, __webpack_exports__AnnotationMode as AnnotationMode, __webpack_exports__CMapCompressionType as CMapCompressionType, __webpack_exports__ColorPicker as ColorPicker, __webpack_exports__DOMSVGFactory as DOMSVGFactory, __webpack_exports__DrawLayer as DrawLayer, __webpack_exports__FeatureTest as FeatureTest, __webpack_exports__GlobalWorkerOptions as GlobalWorkerOptions, __webpack_exports__ImageKind as ImageKind, __webpack_exports__InvalidPDFException as InvalidPDFException, __webpack_exports__MissingPDFException as MissingPDFException, __webpack_exports__OPS as OPS, __webpack_exports__Outliner as Outliner, __webpack_exports__PDFDataRangeTransport as PDFDataRangeTransport, __webpack_exports__PDFDateString as PDFDateString, __webpack_exports__PDFWorker as PDFWorker, __webpack_exports__PasswordResponses as PasswordResponses, __webpack_exports__PermissionFlag as PermissionFlag, __webpack_exports__PixelsPerInch as PixelsPerInch, __webpack_exports__PromiseCapability as PromiseCapability, __webpack_exports__RenderingCancelledException as RenderingCancelledException, __webpack_exports__UnexpectedResponseException as UnexpectedResponseException, __webpack_exports__Util as Util, __webpack_exports__VerbosityLevel as VerbosityLevel, __webpack_exports__XfaLayer as XfaLayer, __webpack_exports__build as build, __webpack_exports__createValidAbsoluteUrl as createValidAbsoluteUrl, __webpack_exports__fetchData as fetchData, __webpack_exports__getDocument as getDocument, __webpack_exports__getFilenameFromUrl as getFilenameFromUrl, __webpack_exports__getPdfFilenameFromUrl as getPdfFilenameFromUrl, __webpack_exports__getXfaPageViewport as getXfaPageViewport, __webpack_exports__isDataScheme as isDataScheme, __webpack_exports__isPdfFile as isPdfFile, __webpack_exports__noContextMenu as noContextMenu, __webpack_exports__normalizeUnicode as normalizeUnicode, __webpack_exports__renderTextLayer as renderTextLayer, __webpack_exports__setLayerDimensions as setLayerDimensions, __webpack_exports__shadow as shadow, __webpack_exports__updateTextLayer as updateTextLayer, __webpack_exports__version as version };
+export { __webpack_exports__AbortException as AbortException, __webpack_exports__AnnotationEditorLayer as AnnotationEditorLayer, __webpack_exports__AnnotationEditorParamsType as AnnotationEditorParamsType, __webpack_exports__AnnotationEditorType as AnnotationEditorType, __webpack_exports__AnnotationEditorUIManager as AnnotationEditorUIManager, __webpack_exports__AnnotationLayer as AnnotationLayer, __webpack_exports__AnnotationMode as AnnotationMode, __webpack_exports__CMapCompressionType as CMapCompressionType, __webpack_exports__ColorPicker as ColorPicker, __webpack_exports__DOMSVGFactory as DOMSVGFactory, __webpack_exports__DrawLayer as DrawLayer, __webpack_exports__FeatureTest as FeatureTest, __webpack_exports__GlobalWorkerOptions as GlobalWorkerOptions, __webpack_exports__ImageKind as ImageKind, __webpack_exports__InvalidPDFException as InvalidPDFException, __webpack_exports__MissingPDFException as MissingPDFException, __webpack_exports__OPS as OPS, __webpack_exports__Outliner as Outliner, __webpack_exports__PDFDataRangeTransport as PDFDataRangeTransport, __webpack_exports__PDFDateString as PDFDateString, __webpack_exports__PDFWorker as PDFWorker, __webpack_exports__PasswordResponses as PasswordResponses, __webpack_exports__PermissionFlag as PermissionFlag, __webpack_exports__PixelsPerInch as PixelsPerInch, __webpack_exports__RenderingCancelledException as RenderingCancelledException, __webpack_exports__UnexpectedResponseException as UnexpectedResponseException, __webpack_exports__Util as Util, __webpack_exports__VerbosityLevel as VerbosityLevel, __webpack_exports__XfaLayer as XfaLayer, __webpack_exports__build as build, __webpack_exports__createValidAbsoluteUrl as createValidAbsoluteUrl, __webpack_exports__fetchData as fetchData, __webpack_exports__getDocument as getDocument, __webpack_exports__getFilenameFromUrl as getFilenameFromUrl, __webpack_exports__getPdfFilenameFromUrl as getPdfFilenameFromUrl, __webpack_exports__getXfaPageViewport as getXfaPageViewport, __webpack_exports__isDataScheme as isDataScheme, __webpack_exports__isPdfFile as isPdfFile, __webpack_exports__noContextMenu as noContextMenu, __webpack_exports__normalizeUnicode as normalizeUnicode, __webpack_exports__renderTextLayer as renderTextLayer, __webpack_exports__setLayerDimensions as setLayerDimensions, __webpack_exports__shadow as shadow, __webpack_exports__updateTextLayer as updateTextLayer, __webpack_exports__version as version };
diff --git a/toolkit/components/pdfjs/content/build/pdf.scripting.mjs b/toolkit/components/pdfjs/content/build/pdf.scripting.mjs
index f590e83af3..8f4c2a7762 100644
--- a/toolkit/components/pdfjs/content/build/pdf.scripting.mjs
+++ b/toolkit/components/pdfjs/content/build/pdf.scripting.mjs
@@ -3957,8 +3957,8 @@ function initSandbox(params) {
 
 ;// CONCATENATED MODULE: ./src/pdf.scripting.js
 
-const pdfjsVersion = "4.1.342";
-const pdfjsBuild = "e384df6f1";
+const pdfjsVersion = "4.1.379";
+const pdfjsBuild = "017e49244";
 globalThis.pdfjsScripting = {
   initSandbox: initSandbox
 };
diff --git a/toolkit/components/pdfjs/content/build/pdf.worker.mjs b/toolkit/components/pdfjs/content/build/pdf.worker.mjs
index e2cd54cf56..76770f6556 100644
--- a/toolkit/components/pdfjs/content/build/pdf.worker.mjs
+++ b/toolkit/components/pdfjs/content/build/pdf.worker.mjs
@@ -744,24 +744,6 @@ function getModificationDate(date = new Date()) {
   const buffer = [date.getUTCFullYear().toString(), (date.getUTCMonth() + 1).toString().padStart(2, "0"), date.getUTCDate().toString().padStart(2, "0"), date.getUTCHours().toString().padStart(2, "0"), date.getUTCMinutes().toString().padStart(2, "0"), date.getUTCSeconds().toString().padStart(2, "0")];
   return buffer.join("");
 }
-class PromiseCapability {
-  #settled = false;
-  constructor() {
-    this.promise = new Promise((resolve, reject) => {
-      this.resolve = data => {
-        this.#settled = true;
-        resolve(data);
-      };
-      this.reject = reason => {
-        this.#settled = true;
-        reject(reason);
-      };
-    });
-  }
-  get settled() {
-    return this.#settled;
-  }
-}
 let NormalizeRegex = null;
 let NormalizationMap = null;
 function normalizeUnicode(str) {
@@ -775,6 +757,17 @@ function getUuid() {
   return crypto.randomUUID();
 }
 const AnnotationPrefix = "pdfjs_internal_id_";
+const FontRenderOps = {
+  BEZIER_CURVE_TO: 0,
+  MOVE_TO: 1,
+  LINE_TO: 2,
+  QUADRATIC_CURVE_TO: 3,
+  RESTORE: 4,
+  SAVE: 5,
+  SCALE: 6,
+  TRANSFORM: 7,
+  TRANSLATE: 8
+};
 
 ;// CONCATENATED MODULE: ./src/core/primitives.js
 
@@ -1789,7 +1782,7 @@ class ChunkedStreamManager {
     this._promisesByRequest = new Map();
     this.progressiveDataLength = 0;
     this.aborted = false;
-    this._loadedStreamCapability = new PromiseCapability();
+    this._loadedStreamCapability = Promise.withResolvers();
   }
   sendRequest(begin, end) {
     const rangeReader = this.pdfNetworkStream.getRangeReader(begin, end);
@@ -1852,7 +1845,7 @@ class ChunkedStreamManager {
     if (chunksNeeded.size === 0) {
       return Promise.resolve();
     }
-    const capability = new PromiseCapability();
+    const capability = Promise.withResolvers();
     this._promisesByRequest.set(requestId, capability);
     const chunksToRequest = [];
     for (const chunk of chunksNeeded) {
@@ -5075,6 +5068,18 @@ function decodeTextRegion(huffman, refinement, width, height, defaultPixelValue,
         symbolHeight += rdh;
         symbolBitmap = decodeRefinement(symbolWidth, symbolHeight, refinementTemplateIndex, symbolBitmap, (rdw >> 1) + rdx, (rdh >> 1) + rdy, false, refinementAt, decodingContext);
       }
+      let increment = 0;
+      if (!transposed) {
+        if (referenceCorner > 1) {
+          currentS += symbolWidth - 1;
+        } else {
+          increment = symbolWidth - 1;
+        }
+      } else if (!(referenceCorner & 1)) {
+        currentS += symbolHeight - 1;
+      } else {
+        increment = symbolHeight - 1;
+      }
       const offsetT = t - (referenceCorner & 1 ? 0 : symbolHeight - 1);
       const offsetS = currentS - (referenceCorner & 2 ? symbolWidth - 1 : 0);
       let s2, t2, symbolRow;
@@ -5101,7 +5106,6 @@ function decodeTextRegion(huffman, refinement, width, height, defaultPixelValue,
               throw new Jbig2Error(`operator ${combinationOperator} is not supported`);
           }
         }
-        currentS += symbolHeight - 1;
       } else {
         for (t2 = 0; t2 < symbolHeight; t2++) {
           row = bitmap[offsetT + t2];
@@ -5124,14 +5128,13 @@ function decodeTextRegion(huffman, refinement, width, height, defaultPixelValue,
               throw new Jbig2Error(`operator ${combinationOperator} is not supported`);
           }
         }
-        currentS += symbolWidth - 1;
       }
       i++;
       const deltaS = huffman ? huffmanTables.tableDeltaS.decode(huffmanInput) : decodeInteger(contextCache, "IADS", decoder);
       if (deltaS === null) {
         break;
       }
-      currentS += deltaS + dsOffset;
+      currentS += increment + deltaS + dsOffset;
     } while (true);
   }
   return bitmap;
@@ -18702,22 +18705,13 @@ function lookupCmap(ranges, unicode) {
 }
 function compileGlyf(code, cmds, font) {
   function moveTo(x, y) {
-    cmds.push({
-      cmd: "moveTo",
-      args: [x, y]
-    });
+    cmds.add(FontRenderOps.MOVE_TO, [x, y]);
   }
   function lineTo(x, y) {
-    cmds.push({
-      cmd: "lineTo",
-      args: [x, y]
-    });
+    cmds.add(FontRenderOps.LINE_TO, [x, y]);
   }
   function quadraticCurveTo(xa, ya, x, y) {
-    cmds.push({
-      cmd: "quadraticCurveTo",
-      args: [xa, ya, x, y]
-    });
+    cmds.add(FontRenderOps.QUADRATIC_CURVE_TO, [xa, ya, x, y]);
   }
   let i = 0;
   const numberOfContours = getInt16(code, i);
@@ -18774,17 +18768,11 @@ function compileGlyf(code, cmds, font) {
       }
       const subglyph = font.glyphs[glyphIndex];
       if (subglyph) {
-        cmds.push({
-          cmd: "save"
-        }, {
-          cmd: "transform",
-          args: [scaleX, scale01, scale10, scaleY, x, y]
-        });
+        cmds.add(FontRenderOps.SAVE);
+        cmds.add(FontRenderOps.TRANSFORM, [scaleX, scale01, scale10, scaleY, x, y]);
         if (!(flags & 0x02)) {}
         compileGlyf(subglyph, cmds, font);
-        cmds.push({
-          cmd: "restore"
-        });
+        cmds.add(FontRenderOps.RESTORE);
       }
     } while (flags & 0x20);
   } else {
@@ -18874,22 +18862,13 @@ function compileGlyf(code, cmds, font) {
 }
 function compileCharString(charStringCode, cmds, font, glyphId) {
   function moveTo(x, y) {
-    cmds.push({
-      cmd: "moveTo",
-      args: [x, y]
-    });
+    cmds.add(FontRenderOps.MOVE_TO, [x, y]);
   }
   function lineTo(x, y) {
-    cmds.push({
-      cmd: "lineTo",
-      args: [x, y]
-    });
+    cmds.add(FontRenderOps.LINE_TO, [x, y]);
   }
   function bezierCurveTo(x1, y1, x2, y2, x, y) {
-    cmds.push({
-      cmd: "bezierCurveTo",
-      args: [x1, y1, x2, y2, x, y]
-    });
+    cmds.add(FontRenderOps.BEZIER_CURVE_TO, [x1, y1, x2, y2, x, y]);
   }
   const stack = [];
   let x = 0,
@@ -19059,17 +19038,11 @@ function compileCharString(charStringCode, cmds, font, glyphId) {
             const bchar = stack.pop();
             y = stack.pop();
             x = stack.pop();
-            cmds.push({
-              cmd: "save"
-            }, {
-              cmd: "translate",
-              args: [x, y]
-            });
+            cmds.add(FontRenderOps.SAVE);
+            cmds.add(FontRenderOps.TRANSLATE, [x, y]);
             let cmap = lookupCmap(font.cmap, String.fromCharCode(font.glyphNameMap[StandardEncoding[achar]]));
             compileCharString(font.glyphs[cmap.glyphId], cmds, font, cmap.glyphId);
-            cmds.push({
-              cmd: "restore"
-            });
+            cmds.add(FontRenderOps.RESTORE);
             cmap = lookupCmap(font.cmap, String.fromCharCode(font.glyphNameMap[StandardEncoding[bchar]]));
             compileCharString(font.glyphs[cmap.glyphId], cmds, font, cmap.glyphId);
           }
@@ -19236,6 +19209,22 @@ function compileCharString(charStringCode, cmds, font, glyphId) {
   parse(charStringCode);
 }
 const NOOP = [];
+class Commands {
+  cmds = [];
+  add(cmd, args) {
+    if (args) {
+      if (args.some(arg => typeof arg !== "number")) {
+        warn(`Commands.add - "${cmd}" has at least one non-number arg: "${args}".`);
+        const newArgs = args.map(arg => typeof arg === "number" ? arg : 0);
+        this.cmds.push(cmd, ...newArgs);
+      } else {
+        this.cmds.push(cmd, ...args);
+      }
+    } else {
+      this.cmds.push(cmd);
+    }
+  }
+}
 class CompiledFont {
   constructor(fontMatrix) {
     if (this.constructor === CompiledFont) {
@@ -19253,8 +19242,7 @@ class CompiledFont {
     let fn = this.compiledGlyphs[glyphId];
     if (!fn) {
       try {
-        fn = this.compileGlyph(this.glyphs[glyphId], glyphId);
-        this.compiledGlyphs[glyphId] = fn;
+        fn = this.compiledGlyphs[glyphId] = this.compileGlyph(this.glyphs[glyphId], glyphId);
       } catch (ex) {
         this.compiledGlyphs[glyphId] = NOOP;
         if (this.compiledCharCodeToGlyphId[charCode] === undefined) {
@@ -19282,20 +19270,13 @@ class CompiledFont {
         warn("Invalid fd index for glyph index.");
       }
     }
-    const cmds = [{
-      cmd: "save"
-    }, {
-      cmd: "transform",
-      args: fontMatrix.slice()
-    }, {
-      cmd: "scale",
-      args: ["size", "-size"]
-    }];
+    const cmds = new Commands();
+    cmds.add(FontRenderOps.SAVE);
+    cmds.add(FontRenderOps.TRANSFORM, fontMatrix.slice());
+    cmds.add(FontRenderOps.SCALE);
     this.compileGlyphImpl(code, cmds, glyphId);
-    cmds.push({
-      cmd: "restore"
-    });
-    return cmds;
+    cmds.add(FontRenderOps.RESTORE);
+    return cmds.cmds;
   }
   compileGlyphImpl() {
     unreachable("Children classes should implement this.");
@@ -25941,14 +25922,18 @@ class Font {
           charCodeToGlyphId[mapping.charCode] = mapping.glyphId;
         }
         forcePostTable = true;
-      } else {
+      } else if (cmapPlatformId === 3 && cmapEncodingId === 0) {
         for (const mapping of cmapMappings) {
           let charCode = mapping.charCode;
-          if (cmapPlatformId === 3 && charCode >= 0xf000 && charCode <= 0xf0ff) {
+          if (charCode >= 0xf000 && charCode <= 0xf0ff) {
             charCode &= 0xff;
           }
           charCodeToGlyphId[charCode] = mapping.glyphId;
         }
+      } else {
+        for (const mapping of cmapMappings) {
+          charCodeToGlyphId[mapping.charCode] = mapping.glyphId;
+        }
       }
       if (properties.glyphNames && (baseEncoding.length || this.differences.length)) {
         for (let i = 0; i < 256; ++i) {
@@ -27080,7 +27065,13 @@ class MeshShading extends BaseShading {
     }
   }
   getIR() {
-    return ["Mesh", this.shadingType, this.coords, this.colors, this.figures, this.bounds, this.bbox, this.background];
+    const {
+      bounds
+    } = this;
+    if (bounds[2] - bounds[0] === 0 || bounds[3] - bounds[1] === 0) {
+      throw new FormatError(`Invalid MeshShading bounds: [${bounds}].`);
+    }
+    return ["Mesh", this.shadingType, this.coords, this.colors, this.figures, bounds, this.bbox, this.background];
   }
 }
 class DummyShading extends BaseShading {
@@ -31794,7 +31785,10 @@ class PartialEvaluator {
     if (font.cacheKey && this.fontCache.has(font.cacheKey)) {
       return this.fontCache.get(font.cacheKey);
     }
-    const fontCapability = new PromiseCapability();
+    const {
+      promise,
+      resolve
+    } = Promise.withResolvers();
     let preEvaluatedFont;
     try {
       preEvaluatedFont = this.preEvaluateFont(font);
@@ -31831,14 +31825,14 @@ class PartialEvaluator {
     }
     assert(fontID?.startsWith("f"), 'The "fontID" must be (correctly) defined.');
     if (fontRefIsRef) {
-      this.fontCache.put(fontRef, fontCapability.promise);
+      this.fontCache.put(fontRef, promise);
     } else {
       font.cacheKey = `cacheKey_${fontID}`;
-      this.fontCache.put(font.cacheKey, fontCapability.promise);
+      this.fontCache.put(font.cacheKey, promise);
     }
     font.loadedName = `${this.idFactory.getDocId()}_${fontID}`;
     this.translateFont(preEvaluatedFont).then(translatedFont => {
-      fontCapability.resolve(new TranslatedFont({
+      resolve(new TranslatedFont({
         loadedName: font.loadedName,
         font: translatedFont,
         dict: font,
@@ -31846,14 +31840,14 @@ class PartialEvaluator {
       }));
     }).catch(reason => {
       warn(`loadFont - translateFont failed: "${reason}".`);
-      fontCapability.resolve(new TranslatedFont({
+      resolve(new TranslatedFont({
         loadedName: font.loadedName,
         font: new ErrorFont(reason instanceof Error ? reason.message : reason),
         dict: font,
         evaluatorOptions: this.options
       }));
     });
-    return fontCapability.promise;
+    return promise;
   }
   buildPath(operatorList, fn, args, parsingText = false) {
     const lastIndex = operatorList.length - 1;
@@ -31937,19 +31931,33 @@ class PartialEvaluator {
     localShadingPatternCache
   }) {
     let id = localShadingPatternCache.get(shading);
-    if (!id) {
-      var shadingFill = Pattern.parseShading(shading, this.xref, resources, this._pdfFunctionFactory, localColorSpaceCache);
-      const patternIR = shadingFill.getIR();
-      id = `pattern_${this.idFactory.createObjId()}`;
-      if (this.parsingType3Font) {
-        id = `${this.idFactory.getDocId()}_type3_${id}`;
+    if (id) {
+      return id;
+    }
+    let patternIR;
+    try {
+      const shadingFill = Pattern.parseShading(shading, this.xref, resources, this._pdfFunctionFactory, localColorSpaceCache);
+      patternIR = shadingFill.getIR();
+    } catch (reason) {
+      if (reason instanceof AbortException) {
+        return null;
       }
-      localShadingPatternCache.set(shading, id);
-      if (this.parsingType3Font) {
-        this.handler.send("commonobj", [id, "Pattern", patternIR]);
-      } else {
-        this.handler.send("obj", [id, this.pageIndex, "Pattern", patternIR]);
+      if (this.options.ignoreErrors) {
+        warn(`parseShading - ignoring shading: "${reason}".`);
+        localShadingPatternCache.set(shading, null);
+        return null;
       }
+      throw reason;
+    }
+    id = `pattern_${this.idFactory.createObjId()}`;
+    if (this.parsingType3Font) {
+      id = `${this.idFactory.getDocId()}_type3_${id}`;
+    }
+    localShadingPatternCache.set(shading, id);
+    if (this.parsingType3Font) {
+      this.handler.send("commonobj", [id, "Pattern", patternIR]);
+    } else {
+      this.handler.send("obj", [id, this.pageIndex, "Pattern", patternIR]);
     }
     return id;
   }
@@ -31975,14 +31983,16 @@ class PartialEvaluator {
           return this.handleTilingType(fn, color, resources, pattern, dict, operatorList, task, localTilingPatternCache);
         } else if (typeNum === PatternType.SHADING) {
           const shading = dict.get("Shading");
-          const matrix = dict.getArray("Matrix");
           const objId = this.parseShading({
             shading,
             resources,
             localColorSpaceCache,
             localShadingPatternCache
           });
-          operatorList.addOp(fn, ["Shading", objId, matrix]);
+          if (objId) {
+            const matrix = dict.getArray("Matrix");
+            operatorList.addOp(fn, ["Shading", objId, matrix]);
+          }
           return undefined;
         }
         throw new FormatError(`Unknown PatternType: ${typeNum}`);
@@ -32393,6 +32403,9 @@ class PartialEvaluator {
               localColorSpaceCache,
               localShadingPatternCache
             });
+            if (!patternId) {
+              continue;
+            }
             args = [patternId];
             fn = OPS.shadingFill;
             break;
@@ -33998,6 +34011,10 @@ class PartialEvaluator {
         systemFontInfo = getFontSubstitution(this.systemFontCache, this.idFactory, this.options.standardFontDataUrl, fontName.name, standardFontName);
       }
     }
+    let fontMatrix = dict.getArray("FontMatrix");
+    if (!Array.isArray(fontMatrix) || fontMatrix.length !== 6 || fontMatrix.some(x => typeof x !== "number")) {
+      fontMatrix = FONT_IDENTITY_MATRIX;
+    }
     const properties = {
       type,
       name: fontName.name,
@@ -34010,7 +34027,7 @@ class PartialEvaluator {
       loadedName: baseDict.loadedName,
       composite,
       fixedPitch: false,
-      fontMatrix: dict.getArray("FontMatrix") || FONT_IDENTITY_MATRIX,
+      fontMatrix,
       firstChar,
       lastChar,
       toUnicode,
@@ -35327,7 +35344,8 @@ function pickPlatformItem(dict) {
   return null;
 }
 class FileSpec {
-  constructor(root, xref) {
+  #contentAvailable = false;
+  constructor(root, xref, skipContent = false) {
     if (!(root instanceof Dict)) {
       return;
     }
@@ -35340,10 +35358,12 @@ class FileSpec {
     if (root.has("RF")) {
       warn("Related file specifications are not supported");
     }
-    this.contentAvailable = true;
-    if (!root.has("EF")) {
-      this.contentAvailable = false;
-      warn("Non-embedded file specifications are not supported");
+    if (!skipContent) {
+      if (root.has("EF")) {
+        this.#contentAvailable = true;
+      } else {
+        warn("Non-embedded file specifications are not supported");
+      }
     }
   }
   get filename() {
@@ -35354,7 +35374,7 @@ class FileSpec {
     return this._filename;
   }
   get content() {
-    if (!this.contentAvailable) {
+    if (!this.#contentAvailable) {
       return null;
     }
     if (!this.contentRef && this.root) {
@@ -38563,7 +38583,7 @@ class Catalog {
         continue;
       }
       if (!outlineDict.has("Title")) {
-        throw new FormatError("Invalid outline item encountered.");
+        warn("Invalid outline item encountered.");
       }
       const data = {
         url: null,
@@ -38592,7 +38612,7 @@ class Catalog {
         unsafeUrl: data.unsafeUrl,
         newWindow: data.newWindow,
         setOCGState: data.setOCGState,
-        title: stringToPDFString(title),
+        title: typeof title === "string" ? stringToPDFString(title) : "",
         color: rgbColor,
         count: Number.isInteger(count) ? count : undefined,
         bold: !!(flags & 2),
@@ -39598,7 +39618,11 @@ class Catalog {
         case "GoToR":
           const urlDict = action.get("F");
           if (urlDict instanceof Dict) {
-            url = urlDict.get("F") || null;
+            const fs = new FileSpec(urlDict, null, true);
+            const {
+              filename
+            } = fs.serializable;
+            url = filename;
           } else if (typeof urlDict === "string") {
             url = urlDict;
           }
@@ -51360,7 +51384,7 @@ class AnnotationBorderStyle {
     }
   }
   setDashArray(dashArray, forceStyle = false) {
-    if (Array.isArray(dashArray) && dashArray.length > 0) {
+    if (Array.isArray(dashArray)) {
       let isValid = true;
       let allZeros = true;
       for (const element of dashArray) {
@@ -51372,7 +51396,7 @@ class AnnotationBorderStyle {
           allZeros = false;
         }
       }
-      if (isValid && !allZeros) {
+      if (dashArray.length === 0 || isValid && !allZeros) {
         this.dashArray = dashArray;
         if (forceStyle) {
           this.setStyle(Name.get("D"));
@@ -56282,7 +56306,7 @@ class MessageHandler {
   }
   sendWithPromise(actionName, data, transfers) {
     const callbackId = this.callbackId++;
-    const capability = new PromiseCapability();
+    const capability = Promise.withResolvers();
     this.callbackCapabilities[callbackId] = capability;
     try {
       this.comObj.postMessage({
@@ -56304,7 +56328,7 @@ class MessageHandler {
       comObj = this.comObj;
     return new ReadableStream({
       start: controller => {
-        const startCapability = new PromiseCapability();
+        const startCapability = Promise.withResolvers();
         this.streamControllers[streamId] = {
           controller,
           startCall: startCapability,
@@ -56323,7 +56347,7 @@ class MessageHandler {
         return startCapability.promise;
       },
       pull: controller => {
-        const pullCapability = new PromiseCapability();
+        const pullCapability = Promise.withResolvers();
         this.streamControllers[streamId].pullCall = pullCapability;
         comObj.postMessage({
           sourceName,
@@ -56336,7 +56360,7 @@ class MessageHandler {
       },
       cancel: reason => {
         assert(reason instanceof Error, "cancel must have a valid reason");
-        const cancelCapability = new PromiseCapability();
+        const cancelCapability = Promise.withResolvers();
         this.streamControllers[streamId].cancelCall = cancelCapability;
         this.streamControllers[streamId].isClosed = true;
         comObj.postMessage({
@@ -56365,7 +56389,7 @@ class MessageHandler {
         const lastDesiredSize = this.desiredSize;
         this.desiredSize -= size;
         if (lastDesiredSize > 0 && this.desiredSize <= 0) {
-          this.sinkCapability = new PromiseCapability();
+          this.sinkCapability = Promise.withResolvers();
           this.ready = this.sinkCapability.promise;
         }
         comObj.postMessage({
@@ -56403,7 +56427,7 @@ class MessageHandler {
           reason: wrapReason(reason)
         });
       },
-      sinkCapability: new PromiseCapability(),
+      sinkCapability: Promise.withResolvers(),
       onPull: null,
       onCancel: null,
       isCancelled: false,
@@ -56681,7 +56705,7 @@ class WorkerTask {
   constructor(name) {
     this.name = name;
     this.terminated = false;
-    this._capability = new PromiseCapability();
+    this._capability = Promise.withResolvers();
   }
   get finished() {
     return this._capability.promise;
@@ -56725,7 +56749,7 @@ class WorkerMessageHandler {
       docId,
       apiVersion
     } = docParams;
-    const workerVersion = "4.1.342";
+    const workerVersion = "4.1.379";
     if (apiVersion !== workerVersion) {
       throw new Error(`The API version "${apiVersion}" does not match ` + `the Worker version "${workerVersion}".`);
     }
@@ -56785,7 +56809,7 @@ class WorkerMessageHandler {
         password,
         rangeChunkSize
       };
-      const pdfManagerCapability = new PromiseCapability();
+      const pdfManagerCapability = Promise.withResolvers();
       let newPdfManager;
       if (data) {
         try {
@@ -57287,8 +57311,8 @@ if (typeof window === "undefined" && !isNodeJS && typeof self !== "undefined" &&
 
 ;// CONCATENATED MODULE: ./src/pdf.worker.js
 
-const pdfjsVersion = "4.1.342";
-const pdfjsBuild = "e384df6f1";
+const pdfjsVersion = "4.1.379";
+const pdfjsBuild = "017e49244";
 
 var __webpack_exports__WorkerMessageHandler = __webpack_exports__.WorkerMessageHandler;
 export { __webpack_exports__WorkerMessageHandler as WorkerMessageHandler };
diff --git a/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs b/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs
index 866c4a405a..c309f8cf12 100644
--- a/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs
+++ b/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs
@@ -529,7 +529,6 @@ function toggleExpandedBtn(button, toggle, view = null) {
 }
 
 ;// CONCATENATED MODULE: ./web/app_options.js
-const compatibilityParams = Object.create(null);
 const OptionKind = {
   BROWSER: 0x01,
   VIEWER: 0x02,
@@ -772,11 +771,8 @@ class AppOptions {
   constructor() {
     throw new Error("Cannot initialize AppOptions.");
   }
-  static getCompat(name) {
-    return compatibilityParams[name] ?? undefined;
-  }
   static get(name) {
-    return userOptions[name] ?? compatibilityParams[name] ?? defaultOptions[name]?.value ?? undefined;
+    return userOptions[name] ?? defaultOptions[name]?.value ?? undefined;
   }
   static getAll(kind = null, defaultOnly = false) {
     const options = Object.create(null);
@@ -785,7 +781,7 @@ class AppOptions {
       if (kind && !(kind & defaultOption.kind)) {
         continue;
       }
-      options[name] = defaultOnly ? defaultOption.value : userOptions[name] ?? compatibilityParams[name] ?? defaultOption.value;
+      options[name] = defaultOnly ? defaultOption.value : userOptions[name] ?? defaultOption.value;
     }
     return options;
   }
@@ -1252,7 +1248,6 @@ const {
   PDFWorker,
   PermissionFlag,
   PixelsPerInch,
-  PromiseCapability,
   RenderingCancelledException,
   renderTextLayer,
   setLayerDimensions,
@@ -1270,35 +1265,38 @@ const WaitOnType = {
   EVENT: "event",
   TIMEOUT: "timeout"
 };
-function waitOnEventOrTimeout({
+async function waitOnEventOrTimeout({
   target,
   name,
   delay = 0
 }) {
-  return new Promise(function (resolve, reject) {
-    if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
-      throw new Error("waitOnEventOrTimeout - invalid parameters.");
-    }
-    function handler(type) {
-      if (target instanceof EventBus) {
-        target._off(name, eventHandler);
-      } else {
-        target.removeEventListener(name, eventHandler);
-      }
-      if (timeout) {
-        clearTimeout(timeout);
-      }
-      resolve(type);
-    }
-    const eventHandler = handler.bind(null, WaitOnType.EVENT);
+  if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
+    throw new Error("waitOnEventOrTimeout - invalid parameters.");
+  }
+  const {
+    promise,
+    resolve
+  } = Promise.withResolvers();
+  function handler(type) {
     if (target instanceof EventBus) {
-      target._on(name, eventHandler);
+      target._off(name, eventHandler);
     } else {
-      target.addEventListener(name, eventHandler);
+      target.removeEventListener(name, eventHandler);
     }
-    const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
-    const timeout = setTimeout(timeoutHandler, delay);
-  });
+    if (timeout) {
+      clearTimeout(timeout);
+    }
+    resolve(type);
+  }
+  const eventHandler = handler.bind(null, WaitOnType.EVENT);
+  if (target instanceof EventBus) {
+    target._on(name, eventHandler);
+  } else {
+    target.addEventListener(name, eventHandler);
+  }
+  const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
+  const timeout = setTimeout(timeoutHandler, delay);
+  return promise;
 }
 class EventBus {
   #listeners = Object.create(null);
@@ -2200,10 +2198,8 @@ class PasswordPrompt {
     this.dialog.addEventListener("close", this.#cancel.bind(this));
   }
   async open() {
-    if (this.#activeCapability) {
-      await this.#activeCapability.promise;
-    }
-    this.#activeCapability = new PromiseCapability();
+    await this.#activeCapability?.promise;
+    this.#activeCapability = Promise.withResolvers();
     try {
       await this.overlayManager.open(this.dialog);
     } catch (ex) {
@@ -2326,7 +2322,6 @@ function getNormalizeWithNFKC() {
 ;// CONCATENATED MODULE: ./web/pdf_find_controller.js
 
 
-
 const FindState = {
   FOUND: 0,
   NOT_FOUND: 1,
@@ -2664,7 +2659,7 @@ class PDFFindController {
     this._dirtyMatch = false;
     clearTimeout(this._findTimeout);
     this._findTimeout = null;
-    this._firstPageCapability = new PromiseCapability();
+    this._firstPageCapability = Promise.withResolvers();
   }
   get #query() {
     const {
@@ -2827,14 +2822,17 @@ class PDFFindController {
     if (this._extractTextPromises.length > 0) {
       return;
     }
-    let promise = Promise.resolve();
+    let deferred = Promise.resolve();
     const textOptions = {
       disableNormalization: true
     };
     for (let i = 0, ii = this._linkService.pagesCount; i < ii; i++) {
-      const extractTextCapability = new PromiseCapability();
-      this._extractTextPromises[i] = extractTextCapability.promise;
-      promise = promise.then(() => {
+      const {
+        promise,
+        resolve
+      } = Promise.withResolvers();
+      this._extractTextPromises[i] = promise;
+      deferred = deferred.then(() => {
         return this._pdfDocument.getPage(i + 1).then(pdfPage => pdfPage.getTextContent(textOptions)).then(textContent => {
           const strBuf = [];
           for (const textItem of textContent.items) {
@@ -2844,13 +2842,13 @@ class PDFFindController {
             }
           }
           [this._pageContents[i], this._pageDiffs[i], this._hasDiacritics[i]] = normalize(strBuf.join(""));
-          extractTextCapability.resolve();
+          resolve();
         }, reason => {
           console.error(`Unable to get text content for page ${i + 1}`, reason);
           this._pageContents[i] = "";
           this._pageDiffs[i] = null;
           this._hasDiacritics[i] = false;
-          extractTextCapability.resolve();
+          resolve();
         });
       });
     }
@@ -3982,7 +3980,7 @@ class PDFScriptingManager {
       return;
     }
     await this.#willPrintCapability?.promise;
-    this.#willPrintCapability = new PromiseCapability();
+    this.#willPrintCapability = Promise.withResolvers();
     try {
       await this.#scripting.dispatchEventInSandbox({
         id: "doc",
@@ -4111,7 +4109,7 @@ class PDFScriptingManager {
     const pdfDocument = this.#pdfDocument,
       visitedPages = this._visitedPages;
     if (initialize) {
-      this.#closeCapability = new PromiseCapability();
+      this.#closeCapability = Promise.withResolvers();
     }
     if (!this.#closeCapability) {
       return;
@@ -4161,7 +4159,7 @@ class PDFScriptingManager {
     });
   }
   #initScripting() {
-    this.#destroyCapability = new PromiseCapability();
+    this.#destroyCapability = Promise.withResolvers();
     if (this.#scripting) {
       throw new Error("#initScripting: Scripting already exists.");
     }
@@ -5116,7 +5114,7 @@ class PDFPageView {
     this.#textLayerMode = options.textLayerMode ?? TextLayerMode.ENABLE;
     this.#annotationMode = options.annotationMode ?? AnnotationMode.ENABLE_FORMS;
     this.imageResourcesPath = options.imageResourcesPath || "";
-    this.maxCanvasPixels = options.maxCanvasPixels ?? (AppOptions.getCompat("maxCanvasPixels") || 2 ** 25);
+    this.maxCanvasPixels = options.maxCanvasPixels ?? AppOptions.get("maxCanvasPixels");
     this.pageColors = options.pageColors || null;
     this.eventBus = options.eventBus;
     this.renderingQueue = options.renderingQueue;
@@ -5922,7 +5920,7 @@ class PDFViewer {
   #scaleTimeoutId = null;
   #textLayerMode = TextLayerMode.ENABLE;
   constructor(options) {
-    const viewerVersion = "4.1.342";
+    const viewerVersion = "4.1.379";
     if (version !== viewerVersion) {
       throw new Error(`The API version "${version}" does not match the Viewer version "${viewerVersion}".`);
     }
@@ -5977,7 +5975,7 @@ class PDFViewer {
     return new Set(this.#buffer);
   }
   get pageViewsReady() {
-    return this._pagesCapability.settled && this._pages.every(pageView => pageView?.pdfPage);
+    return this._pages.every(pageView => pageView?.pdfPage);
   }
   get renderForms() {
     return this.#annotationMode === AnnotationMode.ENABLE_FORMS;
@@ -6280,7 +6278,7 @@ class PDFViewer {
     };
     this.eventBus._on("pagerender", this._onBeforeDraw);
     this._onAfterDraw = evt => {
-      if (evt.cssTransform || this._onePageRenderedCapability.settled) {
+      if (evt.cssTransform) {
         return;
       }
       this._onePageRenderedCapability.resolve({
@@ -6452,9 +6450,9 @@ class PDFViewer {
     this._location = null;
     this._pagesRotation = 0;
     this._optionalContentConfigPromise = null;
-    this._firstPageCapability = new PromiseCapability();
-    this._onePageRenderedCapability = new PromiseCapability();
-    this._pagesCapability = new PromiseCapability();
+    this._firstPageCapability = Promise.withResolvers();
+    this._onePageRenderedCapability = Promise.withResolvers();
+    this._pagesCapability = Promise.withResolvers();
     this._scrollMode = ScrollMode.VERTICAL;
     this._previousScrollMode = ScrollMode.UNKNOWN;
     this._spreadMode = SpreadMode.NONE;
@@ -7475,7 +7473,10 @@ const ViewOnLoad = {
 };
 const PDFViewerApplication = {
   initialBookmark: document.location.hash.substring(1),
-  _initializedCapability: new PromiseCapability(),
+  _initializedCapability: {
+    ...Promise.withResolvers(),
+    settled: false
+  },
   appConfig: null,
   pdfDocument: null,
   pdfLoadingTask: null,
@@ -7550,6 +7551,7 @@ const PDFViewerApplication = {
     await this._initializeViewerComponents();
     this.bindEvents();
     this.bindWindowEvents();
+    this._initializedCapability.settled = true;
     this._initializedCapability.resolve();
   },
   async _parseHashParams() {
@@ -8608,6 +8610,10 @@ const PDFViewerApplication = {
       mediaQueryList.addEventListener("change", addWindowResolutionChange, {
         once: true
       });
+      _boundEvents.removeWindowResolutionChange ||= function () {
+        mediaQueryList.removeEventListener("change", addWindowResolutionChange);
+        _boundEvents.removeWindowResolutionChange = null;
+      };
     }
     addWindowResolutionChange();
     _boundEvents.windowResize = () => {
@@ -9531,8 +9537,8 @@ function webViewerReportTelemetry({
 
 
 
-const pdfjsVersion = "4.1.342";
-const pdfjsBuild = "e384df6f1";
+const pdfjsVersion = "4.1.379";
+const pdfjsBuild = "017e49244";
 const AppConstants = null;
 window.PDFViewerApplication = PDFViewerApplication;
 window.PDFViewerApplicationConstants = AppConstants;
diff --git a/toolkit/components/pdfjs/content/web/viewer.css b/toolkit/components/pdfjs/content/web/viewer.css
index 2999c89f3a..063fa1632b 100644
--- a/toolkit/components/pdfjs/content/web/viewer.css
+++ b/toolkit/components/pdfjs/content/web/viewer.css
@@ -3513,7 +3513,7 @@ a:is(.toolbarButton, .secondaryToolbarButton)[href="#"]{
   transition-property:none;
 
   .loadingInput:has(> &.loading)::after{
-    display: block;
+    display:block;
     visibility:visible;
 
     transition-property:visibility;
@@ -3525,7 +3525,7 @@ a:is(.toolbarButton, .secondaryToolbarButton)[href="#"]{
   &::after{
     position:absolute;
     visibility:hidden;
-    display: none;
+    display:none;
     top:calc(50% - 8px);
     width:16px;
     height:16px;
diff --git a/toolkit/components/pdfjs/content/web/viewer.mjs b/toolkit/components/pdfjs/content/web/viewer.mjs
index 778ce57e1a..864140b624 100644
--- a/toolkit/components/pdfjs/content/web/viewer.mjs
+++ b/toolkit/components/pdfjs/content/web/viewer.mjs
@@ -529,7 +529,6 @@ function toggleExpandedBtn(button, toggle, view = null) {
 }
 
 ;// CONCATENATED MODULE: ./web/app_options.js
-const compatibilityParams = Object.create(null);
 const OptionKind = {
   BROWSER: 0x01,
   VIEWER: 0x02,
@@ -772,11 +771,8 @@ class AppOptions {
   constructor() {
     throw new Error("Cannot initialize AppOptions.");
   }
-  static getCompat(name) {
-    return compatibilityParams[name] ?? undefined;
-  }
   static get(name) {
-    return userOptions[name] ?? compatibilityParams[name] ?? defaultOptions[name]?.value ?? undefined;
+    return userOptions[name] ?? defaultOptions[name]?.value ?? undefined;
   }
   static getAll(kind = null, defaultOnly = false) {
     const options = Object.create(null);
@@ -785,7 +781,7 @@ class AppOptions {
       if (kind && !(kind & defaultOption.kind)) {
         continue;
       }
-      options[name] = defaultOnly ? defaultOption.value : userOptions[name] ?? compatibilityParams[name] ?? defaultOption.value;
+      options[name] = defaultOnly ? defaultOption.value : userOptions[name] ?? defaultOption.value;
     }
     return options;
   }
@@ -1252,7 +1248,6 @@ const {
   PDFWorker,
   PermissionFlag,
   PixelsPerInch,
-  PromiseCapability,
   RenderingCancelledException,
   renderTextLayer,
   setLayerDimensions,
@@ -1270,35 +1265,38 @@ const WaitOnType = {
   EVENT: "event",
   TIMEOUT: "timeout"
 };
-function waitOnEventOrTimeout({
+async function waitOnEventOrTimeout({
   target,
   name,
   delay = 0
 }) {
-  return new Promise(function (resolve, reject) {
-    if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
-      throw new Error("waitOnEventOrTimeout - invalid parameters.");
-    }
-    function handler(type) {
-      if (target instanceof EventBus) {
-        target._off(name, eventHandler);
-      } else {
-        target.removeEventListener(name, eventHandler);
-      }
-      if (timeout) {
-        clearTimeout(timeout);
-      }
-      resolve(type);
-    }
-    const eventHandler = handler.bind(null, WaitOnType.EVENT);
+  if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
+    throw new Error("waitOnEventOrTimeout - invalid parameters.");
+  }
+  const {
+    promise,
+    resolve
+  } = Promise.withResolvers();
+  function handler(type) {
     if (target instanceof EventBus) {
-      target._on(name, eventHandler);
+      target._off(name, eventHandler);
     } else {
-      target.addEventListener(name, eventHandler);
+      target.removeEventListener(name, eventHandler);
     }
-    const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
-    const timeout = setTimeout(timeoutHandler, delay);
-  });
+    if (timeout) {
+      clearTimeout(timeout);
+    }
+    resolve(type);
+  }
+  const eventHandler = handler.bind(null, WaitOnType.EVENT);
+  if (target instanceof EventBus) {
+    target._on(name, eventHandler);
+  } else {
+    target.addEventListener(name, eventHandler);
+  }
+  const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
+  const timeout = setTimeout(timeoutHandler, delay);
+  return promise;
 }
 class EventBus {
   #listeners = Object.create(null);
@@ -2480,10 +2478,8 @@ class PasswordPrompt {
     this.dialog.addEventListener("close", this.#cancel.bind(this));
   }
   async open() {
-    if (this.#activeCapability) {
-      await this.#activeCapability.promise;
-    }
-    this.#activeCapability = new PromiseCapability();
+    await this.#activeCapability?.promise;
+    this.#activeCapability = Promise.withResolvers();
     try {
       await this.overlayManager.open(this.dialog);
     } catch (ex) {
@@ -2642,7 +2638,7 @@ class PDFAttachmentViewer extends BaseTreeViewer {
     super.reset();
     this._attachments = null;
     if (!keepRenderedCapability) {
-      this._renderedCapability = new PromiseCapability();
+      this._renderedCapability = Promise.withResolvers();
     }
     this._pendingDispatchEvent = false;
   }
@@ -3039,7 +3035,7 @@ class PDFDocumentProperties {
   #reset() {
     this.pdfDocument = null;
     this.#fieldData = null;
-    this._dataAvailableCapability = new PromiseCapability();
+    this._dataAvailableCapability = Promise.withResolvers();
     this._currentPageNumber = 1;
     this._pagesRotation = 0;
   }
@@ -3214,7 +3210,6 @@ function getNormalizeWithNFKC() {
 ;// CONCATENATED MODULE: ./web/pdf_find_controller.js
 
 
-
 const FindState = {
   FOUND: 0,
   NOT_FOUND: 1,
@@ -3552,7 +3547,7 @@ class PDFFindController {
     this._dirtyMatch = false;
     clearTimeout(this._findTimeout);
     this._findTimeout = null;
-    this._firstPageCapability = new PromiseCapability();
+    this._firstPageCapability = Promise.withResolvers();
   }
   get #query() {
     const {
@@ -3715,14 +3710,17 @@ class PDFFindController {
     if (this._extractTextPromises.length > 0) {
       return;
     }
-    let promise = Promise.resolve();
+    let deferred = Promise.resolve();
     const textOptions = {
       disableNormalization: true
     };
     for (let i = 0, ii = this._linkService.pagesCount; i < ii; i++) {
-      const extractTextCapability = new PromiseCapability();
-      this._extractTextPromises[i] = extractTextCapability.promise;
-      promise = promise.then(() => {
+      const {
+        promise,
+        resolve
+      } = Promise.withResolvers();
+      this._extractTextPromises[i] = promise;
+      deferred = deferred.then(() => {
         return this._pdfDocument.getPage(i + 1).then(pdfPage => pdfPage.getTextContent(textOptions)).then(textContent => {
           const strBuf = [];
           for (const textItem of textContent.items) {
@@ -3732,13 +3730,13 @@ class PDFFindController {
             }
           }
           [this._pageContents[i], this._pageDiffs[i], this._hasDiacritics[i]] = normalize(strBuf.join(""));
-          extractTextCapability.resolve();
+          resolve();
         }, reason => {
           console.error(`Unable to get text content for page ${i + 1}`, reason);
           this._pageContents[i] = "";
           this._pageDiffs[i] = null;
           this._hasDiacritics[i] = false;
-          extractTextCapability.resolve();
+          resolve();
         });
       });
     }
@@ -4722,7 +4720,6 @@ class PDFLayerViewer extends BaseTreeViewer {
 ;// CONCATENATED MODULE: ./web/pdf_outline_viewer.js
 
 
-
 class PDFOutlineViewer extends BaseTreeViewer {
   constructor(options) {
     super(options);
@@ -4735,9 +4732,7 @@ class PDFOutlineViewer extends BaseTreeViewer {
     });
     this.eventBus._on("pagesloaded", evt => {
       this._isPagesLoaded = !!evt.pagesCount;
-      if (this._currentOutlineItemCapability && !this._currentOutlineItemCapability.settled) {
-        this._currentOutlineItemCapability.resolve(this._isPagesLoaded);
-      }
+      this._currentOutlineItemCapability?.resolve(this._isPagesLoaded);
     });
     this.eventBus._on("sidebarviewchanged", evt => {
       this._sidebarView = evt.view;
@@ -4749,13 +4744,11 @@ class PDFOutlineViewer extends BaseTreeViewer {
     this._pageNumberToDestHashCapability = null;
     this._currentPageNumber = 1;
     this._isPagesLoaded = null;
-    if (this._currentOutlineItemCapability && !this._currentOutlineItemCapability.settled) {
-      this._currentOutlineItemCapability.resolve(false);
-    }
+    this._currentOutlineItemCapability?.resolve(false);
     this._currentOutlineItemCapability = null;
   }
   _dispatchEvent(outlineCount) {
-    this._currentOutlineItemCapability = new PromiseCapability();
+    this._currentOutlineItemCapability = Promise.withResolvers();
     if (outlineCount === 0 || this._pdfDocument?.loadingParams.disableAutoFetch) {
       this._currentOutlineItemCapability.resolve(false);
     } else if (this._isPagesLoaded !== null) {
@@ -4937,7 +4930,7 @@ class PDFOutlineViewer extends BaseTreeViewer {
     if (this._pageNumberToDestHashCapability) {
       return this._pageNumberToDestHashCapability.promise;
     }
-    this._pageNumberToDestHashCapability = new PromiseCapability();
+    this._pageNumberToDestHashCapability = Promise.withResolvers();
     const pageNumberToDestHash = new Map(),
       pageNumberNesting = new Map();
     const queue = [{
@@ -5752,7 +5745,7 @@ class PDFScriptingManager {
       return;
     }
     await this.#willPrintCapability?.promise;
-    this.#willPrintCapability = new PromiseCapability();
+    this.#willPrintCapability = Promise.withResolvers();
     try {
       await this.#scripting.dispatchEventInSandbox({
         id: "doc",
@@ -5881,7 +5874,7 @@ class PDFScriptingManager {
     const pdfDocument = this.#pdfDocument,
       visitedPages = this._visitedPages;
     if (initialize) {
-      this.#closeCapability = new PromiseCapability();
+      this.#closeCapability = Promise.withResolvers();
     }
     if (!this.#closeCapability) {
       return;
@@ -5931,7 +5924,7 @@ class PDFScriptingManager {
     });
   }
   #initScripting() {
-    this.#destroyCapability = new PromiseCapability();
+    this.#destroyCapability = Promise.withResolvers();
     if (this.#scripting) {
       throw new Error("#initScripting: Scripting already exists.");
     }
@@ -6409,7 +6402,7 @@ class PDFThumbnailView {
     }
     this.resume = null;
   }
-  _getPageDrawContext(upscaleFactor = 1) {
+  #getPageDrawContext(upscaleFactor = 1) {
     const canvas = document.createElement("canvas");
     const ctx = canvas.getContext("2d", {
       alpha: false
@@ -6424,11 +6417,11 @@ class PDFThumbnailView {
       transform
     };
   }
-  _convertCanvasToImage(canvas) {
+  #convertCanvasToImage(canvas) {
     if (this.renderingState !== RenderingStates.FINISHED) {
-      throw new Error("_convertCanvasToImage: Rendering has not finished.");
+      throw new Error("#convertCanvasToImage: Rendering has not finished.");
     }
-    const reducedCanvas = this._reduceImage(canvas);
+    const reducedCanvas = this.#reduceImage(canvas);
     const image = document.createElement("img");
     image.className = "thumbnailImage";
     image.setAttribute("data-l10n-id", "pdfjs-thumb-page-canvas");
@@ -6448,7 +6441,7 @@ class PDFThumbnailView {
       return;
     }
     this.renderingState = RenderingStates.FINISHED;
-    this._convertCanvasToImage(canvas);
+    this.#convertCanvasToImage(canvas);
     if (error) {
       throw error;
     }
@@ -6470,7 +6463,7 @@ class PDFThumbnailView {
       ctx,
       canvas,
       transform
-    } = this._getPageDrawContext(DRAW_UPSCALE_FACTOR);
+    } = this.#getPageDrawContext(DRAW_UPSCALE_FACTOR);
     const drawViewport = this.viewport.clone({
       scale: DRAW_UPSCALE_FACTOR * this.scale
     });
@@ -6525,13 +6518,13 @@ class PDFThumbnailView {
       return;
     }
     this.renderingState = RenderingStates.FINISHED;
-    this._convertCanvasToImage(canvas);
+    this.#convertCanvasToImage(canvas);
   }
-  _reduceImage(img) {
+  #reduceImage(img) {
     const {
       ctx,
       canvas
-    } = this._getPageDrawContext();
+    } = this.#getPageDrawContext();
     if (img.width <= 2 * canvas.width) {
       ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0, canvas.width, canvas.height);
       return canvas;
@@ -6585,16 +6578,16 @@ class PDFThumbnailViewer {
     this.linkService = linkService;
     this.renderingQueue = renderingQueue;
     this.pageColors = pageColors || null;
-    this.scroll = watchScroll(this.container, this._scrollUpdated.bind(this));
-    this._resetView();
+    this.scroll = watchScroll(this.container, this.#scrollUpdated.bind(this));
+    this.#resetView();
   }
-  _scrollUpdated() {
+  #scrollUpdated() {
     this.renderingQueue.renderHighestPriority();
   }
   getThumbnail(index) {
     return this._thumbnails[index];
   }
-  _getVisibleThumbs() {
+  #getVisibleThumbs() {
     return getVisibleElements({
       scrollEl: this.container,
       views: this._thumbnails
@@ -6618,7 +6611,7 @@ class PDFThumbnailViewer {
       first,
       last,
       views
-    } = this._getVisibleThumbs();
+    } = this.#getVisibleThumbs();
     if (views.length > 0) {
       let shouldScroll = false;
       if (pageNumber <= first.id || pageNumber >= last.id) {
@@ -6672,7 +6665,7 @@ class PDFThumbnailViewer {
     }
     TempImageFactory.destroyCanvas();
   }
-  _resetView() {
+  #resetView() {
     this._thumbnails = [];
     this._currentPageNumber = 1;
     this._pageLabels = null;
@@ -6681,8 +6674,8 @@ class PDFThumbnailViewer {
   }
   setDocument(pdfDocument) {
     if (this.pdfDocument) {
-      this._cancelRendering();
-      this._resetView();
+      this.#cancelRendering();
+      this.#resetView();
     }
     this.pdfDocument = pdfDocument;
     if (!pdfDocument) {
@@ -6717,7 +6710,7 @@ class PDFThumbnailViewer {
       console.error("Unable to initialize thumbnail viewer", reason);
     });
   }
-  _cancelRendering() {
+  #cancelRendering() {
     for (const thumbnail of this._thumbnails) {
       thumbnail.cancelRendering();
     }
@@ -6762,7 +6755,7 @@ class PDFThumbnailViewer {
     return this.scroll.down;
   }
   forceRendering() {
-    const visibleThumbs = this._getVisibleThumbs();
+    const visibleThumbs = this.#getVisibleThumbs();
     const scrollAhead = this.#getScrollAhead(visibleThumbs);
     const thumbView = this.renderingQueue.getHighestPriority(visibleThumbs, this._thumbnails, scrollAhead);
     if (thumbView) {
@@ -7694,7 +7687,7 @@ class PDFPageView {
     this.#textLayerMode = options.textLayerMode ?? TextLayerMode.ENABLE;
     this.#annotationMode = options.annotationMode ?? AnnotationMode.ENABLE_FORMS;
     this.imageResourcesPath = options.imageResourcesPath || "";
-    this.maxCanvasPixels = options.maxCanvasPixels ?? (AppOptions.getCompat("maxCanvasPixels") || 2 ** 25);
+    this.maxCanvasPixels = options.maxCanvasPixels ?? AppOptions.get("maxCanvasPixels");
     this.pageColors = options.pageColors || null;
     this.eventBus = options.eventBus;
     this.renderingQueue = options.renderingQueue;
@@ -8500,7 +8493,7 @@ class PDFViewer {
   #scaleTimeoutId = null;
   #textLayerMode = TextLayerMode.ENABLE;
   constructor(options) {
-    const viewerVersion = "4.1.342";
+    const viewerVersion = "4.1.379";
     if (version !== viewerVersion) {
       throw new Error(`The API version "${version}" does not match the Viewer version "${viewerVersion}".`);
     }
@@ -8555,7 +8548,7 @@ class PDFViewer {
     return new Set(this.#buffer);
   }
   get pageViewsReady() {
-    return this._pagesCapability.settled && this._pages.every(pageView => pageView?.pdfPage);
+    return this._pages.every(pageView => pageView?.pdfPage);
   }
   get renderForms() {
     return this.#annotationMode === AnnotationMode.ENABLE_FORMS;
@@ -8858,7 +8851,7 @@ class PDFViewer {
     };
     this.eventBus._on("pagerender", this._onBeforeDraw);
     this._onAfterDraw = evt => {
-      if (evt.cssTransform || this._onePageRenderedCapability.settled) {
+      if (evt.cssTransform) {
         return;
       }
       this._onePageRenderedCapability.resolve({
@@ -9030,9 +9023,9 @@ class PDFViewer {
     this._location = null;
     this._pagesRotation = 0;
     this._optionalContentConfigPromise = null;
-    this._firstPageCapability = new PromiseCapability();
-    this._onePageRenderedCapability = new PromiseCapability();
-    this._pagesCapability = new PromiseCapability();
+    this._firstPageCapability = Promise.withResolvers();
+    this._onePageRenderedCapability = Promise.withResolvers();
+    this._pagesCapability = Promise.withResolvers();
     this._scrollMode = ScrollMode.VERTICAL;
     this._previousScrollMode = ScrollMode.UNKNOWN;
     this._spreadMode = SpreadMode.NONE;
@@ -10543,7 +10536,10 @@ const ViewOnLoad = {
 };
 const PDFViewerApplication = {
   initialBookmark: document.location.hash.substring(1),
-  _initializedCapability: new PromiseCapability(),
+  _initializedCapability: {
+    ...Promise.withResolvers(),
+    settled: false
+  },
   appConfig: null,
   pdfDocument: null,
   pdfLoadingTask: null,
@@ -10617,6 +10613,7 @@ const PDFViewerApplication = {
     await this._initializeViewerComponents();
     this.bindEvents();
     this.bindWindowEvents();
+    this._initializedCapability.settled = true;
     this._initializedCapability.resolve();
   },
   async _parseHashParams() {
@@ -11708,6 +11705,10 @@ const PDFViewerApplication = {
       mediaQueryList.addEventListener("change", addWindowResolutionChange, {
         once: true
       });
+      _boundEvents.removeWindowResolutionChange ||= function () {
+        mediaQueryList.removeEventListener("change", addWindowResolutionChange);
+        _boundEvents.removeWindowResolutionChange = null;
+      };
     }
     addWindowResolutionChange();
     _boundEvents.windowResize = () => {
@@ -12631,8 +12632,8 @@ function webViewerReportTelemetry({
 
 
 
-const pdfjsVersion = "4.1.342";
-const pdfjsBuild = "e384df6f1";
+const pdfjsVersion = "4.1.379";
+const pdfjsBuild = "017e49244";
 const AppConstants = null;
 window.PDFViewerApplication = PDFViewerApplication;
 window.PDFViewerApplicationConstants = AppConstants;
diff --git a/toolkit/components/pdfjs/moz.yaml b/toolkit/components/pdfjs/moz.yaml
index bd85f67f5a..0938b8d987 100644
--- a/toolkit/components/pdfjs/moz.yaml
+++ b/toolkit/components/pdfjs/moz.yaml
@@ -20,8 +20,8 @@ origin:
 
   # Human-readable identifier for this version/release
   # Generally "version NNN", "tag SSS", "bookmark SSS"
-  release: e384df6f16b9ad1c55d1bc325bcae7e096ef3f9b (2024-03-27T19:54:30Z).
-  revision: e384df6f16b9ad1c55d1bc325bcae7e096ef3f9b
+  release: a208d6bca72f8cb700f7bb506ea1bc3e76cbaec0 (2024-04-09T07:48:17Z).
+  revision: a208d6bca72f8cb700f7bb506ea1bc3e76cbaec0
 
   # The package's license, where possible using the mnemonic from
   # https://spdx.org/licenses/
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_editing_contextmenu.js b/toolkit/components/pdfjs/test/browser_pdfjs_editing_contextmenu.js
index 779a3a6ad4..f13d03d643 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_editing_contextmenu.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_editing_contextmenu.js
@@ -130,7 +130,7 @@ function assertMenuitems(menuitems, expected) {
         elmt =>
           !elmt.id.includes("-sep-") &&
           !elmt.hidden &&
-          ["", "false"].includes(elmt.getAttribute("disabled"))
+          [null, "false"].includes(elmt.getAttribute("disabled"))
       )
       .map(elmt => elmt.id),
     expected
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_find.js b/toolkit/components/pdfjs/test/browser_pdfjs_find.js
index 24a3a50967..b3b3e11152 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_find.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_find.js
@@ -13,7 +13,7 @@ const OS_PDF_URL = TESTROOT + "file_pdfjs_object_stream.pdf";
 const TEST_PDF_URL = TESTROOT + "file_pdfjs_test.pdf";
 
 add_task(async function test_find_octet_stream_pdf() {
-  await BrowserTestUtils.withNewTab(OS_PDF_URL, async browser => {
+  await BrowserTestUtils.withNewTab(OS_PDF_URL, async () => {
     let findEls = ["cmd_find", "cmd_findAgain", "cmd_findPrevious"].map(id =>
       document.getElementById(id)
     );
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_force_opening_files.js b/toolkit/components/pdfjs/test/browser_pdfjs_force_opening_files.js
index 0490a6eec3..f09581daa7 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_force_opening_files.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_force_opening_files.js
@@ -13,7 +13,7 @@ add_task(async function test_file_opening() {
   // the default - because files from disk should always use pdfjs, unless
   // it is forcibly disabled.
   let openedWindow = false;
-  let windowOpenedPromise = new Promise((resolve, reject) => {
+  let windowOpenedPromise = new Promise(resolve => {
     addWindowListener(
       "chrome://mozapps/content/downloads/unknownContentType.xhtml",
       () => {
@@ -82,7 +82,7 @@ function addWindowListener(aURL, aCallback) {
         aCallback();
       }, domwindow);
     },
-    onCloseWindow(aXULWindow) {},
+    onCloseWindow() {},
   };
   Services.wm.addListener(listener);
   listenerCleanup = () => Services.wm.removeListener(listener);
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_fullscreen.js b/toolkit/components/pdfjs/test/browser_pdfjs_fullscreen.js
index d53e4cfa74..4add7a4715 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_fullscreen.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_fullscreen.js
@@ -8,7 +8,7 @@ function waitForFullScreenState(browser, state) {
   return new Promise(resolve => {
     let eventReceived = false;
 
-    let observe = (subject, topic, data) => {
+    let observe = () => {
       if (!eventReceived) {
         return;
       }
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_navigation.js b/toolkit/components/pdfjs/test/browser_pdfjs_navigation.js
index 9851150e80..5fda1ac8b2 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_navigation.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_navigation.js
@@ -229,7 +229,7 @@ async function contentSetUp() {
     return new Promise(resolve => {
       document.addEventListener(
         "pagerendered",
-        function (e) {
+        function () {
           document.querySelector("#viewer").click();
           resolve();
         },
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_octet_stream.js b/toolkit/components/pdfjs/test/browser_pdfjs_octet_stream.js
index d2b4fe310f..8e81ddb2c5 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_octet_stream.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_octet_stream.js
@@ -88,7 +88,7 @@ add_task(async function test_octet_stream_in_frame() {
 
   await BrowserTestUtils.withNewTab(
     { gBrowser, url: `data:text/html,<iframe src='${PDF_URL}'>` },
-    async function (newTabBrowser) {
+    async function () {
       // wait until downloadsPanel opens before continuing with test
       info("Waiting for download panel to open");
       await downloadsPanelPromise;
diff --git a/toolkit/components/pdfjs/test/browser_pdfjs_savedialog.js b/toolkit/components/pdfjs/test/browser_pdfjs_savedialog.js
index 4f0c952ebb..e514eaf530 100644
--- a/toolkit/components/pdfjs/test/browser_pdfjs_savedialog.js
+++ b/toolkit/components/pdfjs/test/browser_pdfjs_savedialog.js
@@ -48,6 +48,6 @@ function addWindowListener(aURL, aCallback) {
         aCallback();
       }, domwindow);
     },
-    onCloseWindow(aXULWindow) {},
+    onCloseWindow() {},
   });
 }