diff --git a/extensions/chromium/preferences_schema.json b/extensions/chromium/preferences_schema.json
index 1e83464bc..6e32677ac 100644
--- a/extensions/chromium/preferences_schema.json
+++ b/extensions/chromium/preferences_schema.json
@@ -81,10 +81,6 @@
       "description": "Whether to allow execution of active content (JavaScript) by PDF files.",
       "default": false
     },
-    "enableStampEditor": {
-      "type": "boolean",
-      "default": true
-    },
     "disableRange": {
       "title": "Disable range requests",
       "description": "Whether to disable range requests (not recommended).",
diff --git a/web/app.js b/web/app.js
index d05e76931..7e1b361da 100644
--- a/web/app.js
+++ b/web/app.js
@@ -546,8 +546,8 @@ const PDFViewerApplication = {
 
     if (appConfig.annotationEditorParams) {
       if (annotationEditorMode !== AnnotationEditorType.DISABLE) {
-        if (AppOptions.get("enableStampEditor") && isOffscreenCanvasSupported) {
-          appConfig.toolbar?.editorStampButton?.classList.remove("hidden");
+        if (!isOffscreenCanvasSupported) {
+          appConfig.toolbar?.editorStampButton?.classList.add("hidden");
         }
 
         this.annotationEditorParams = new AnnotationEditorParams(
diff --git a/web/app_options.js b/web/app_options.js
index 9f63deedb..65be25b86 100644
--- a/web/app_options.js
+++ b/web/app_options.js
@@ -103,14 +103,6 @@ const defaultOptions = {
     value: typeof PDFJSDev === "undefined" || !PDFJSDev.test("CHROME"),
     kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
   },
-  enableStampEditor: {
-    // We'll probably want to make some experiments before enabling this
-    // in Firefox release, but it has to be temporary.
-    // TODO: remove it when unnecessary.
-    /** @type {boolean} */
-    value: true,
-    kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
-  },
   externalLinkRel: {
     /** @type {string} */
     value: "noopener noreferrer nofollow",
diff --git a/web/viewer.html b/web/viewer.html
index 47d3929a5..3c172f02a 100644
--- a/web/viewer.html
+++ b/web/viewer.html
@@ -353,7 +353,7 @@ See https://github.com/adobe-type-tools/cmap-resources
                   <button id="editorInk" class="toolbarButton" disabled="disabled" title="Draw" role="radio" aria-checked="false" aria-controls="editorInkParamsToolbar" tabindex="35" data-l10n-id="pdfjs-editor-ink-button">
                     <span data-l10n-id="pdfjs-editor-ink-button-label">Draw</span>
                   </button>
-                  <button id="editorStamp" class="toolbarButton hidden" disabled="disabled" title="Add or edit images" role="radio" aria-checked="false" aria-controls="editorStampParamsToolbar" tabindex="36" data-l10n-id="pdfjs-editor-stamp-button">
+                  <button id="editorStamp" class="toolbarButton" disabled="disabled" title="Add or edit images" role="radio" aria-checked="false" aria-controls="editorStampParamsToolbar" tabindex="36" data-l10n-id="pdfjs-editor-stamp-button">
                     <span data-l10n-id="pdfjs-editor-stamp-button-label">Add or edit images</span>
                   </button>
                 </div>