1 files changed, 37 insertions, 0 deletions
diff --git a/devtools/startup/AboutDebuggingRegistration.sys.mjs b/devtools/startup/AboutDebuggingRegistration.sys.mjs
new file mode 100644
index 0000000000..8ae4f380b9
--- /dev/null
+++ b/devtools/startup/AboutDebuggingRegistration.sys.mjs
@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Register the about:debugging URL, that allows to debug tabs, extensions, workers on
+// the current instance of Firefox or on a remote Firefox.
+
+const { nsIAboutModule } = Ci;
+
+export function AboutDebugging() {}
+
+AboutDebugging.prototype = {
+  classDescription: "about:debugging",
+  classID: Components.ID("1060afaf-dc9e-43da-8646-23a2faf48493"),
+  contractID: "@mozilla.org/network/protocol/about;1?what=debugging",
+
+  QueryInterface: ChromeUtils.generateQI([nsIAboutModule]),
+
+  newChannel(_, loadInfo) {
+    const chan = Services.io.newChannelFromURIWithLoadInfo(
+      Services.io.newURI("chrome://devtools/content/aboutdebugging/index.html"),
+      loadInfo
+    );
+    chan.owner = Services.scriptSecurityManager.getSystemPrincipal();
+    return chan;
+  },
+
+  getURIFlags(uri) {
+    return nsIAboutModule.ALLOW_SCRIPT | nsIAboutModule.IS_SECURE_CHROME_UI;
+  },
+
+  getChromeURI(_uri) {
+    return Services.io.newURI(
+      "chrome://devtools/content/aboutdebugging/index.html"
+    );
+  },
+};