1 files changed, 48 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-browser-refs-in-toolkit.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-browser-refs-in-toolkit.js
new file mode 100644
index 0000000000..fea94d364e
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-browser-refs-in-toolkit.js
@@ -0,0 +1,48 @@
+/**
+ * @fileoverview Reject use of browser/-based references from code in
+ *               directories like toolkit/ that ought not to depend on
+ *               running inside desktop Firefox.
+ *
+ * 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/.
+ */
+
+"use strict";
+
+module.exports = {
+  meta: {
+    docs: {
+      url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/rules/no-browser-refs-in-toolkit.html",
+    },
+    messages: {
+      noBrowserChrome:
+        "> {{url}} is part of Desktop Firefox and cannot be unconditionally " +
+        "used by this code (which has to also work elsewhere).",
+    },
+    schema: [],
+    type: "suggestion",
+  },
+
+  create(context) {
+    return {
+      Literal(node) {
+        if (typeof node.value != "string") {
+          return;
+        }
+        if (
+          node.value.startsWith("chrome://browser") ||
+          node.value.startsWith("resource:///") ||
+          node.value.startsWith("resource://app/") ||
+          (node.value.startsWith("browser/") && node.value.endsWith(".ftl"))
+        ) {
+          context.report({
+            node,
+            messageId: "noBrowserChrome",
+            data: { url: node.value },
+          });
+        }
+      },
+    };
+  },
+};