diff --git a/extensions/chromium/preferences_schema.json b/extensions/chromium/preferences_schema.json
index ec8654581065e..80f2716d11c4c 100644
--- a/extensions/chromium/preferences_schema.json
+++ b/extensions/chromium/preferences_schema.json
@@ -86,10 +86,6 @@
       "type": "string",
       "default": "yellow=#FFFF98,green=#53FFBC,blue=#80EBFF,pink=#FFCBE6,red=#FF4F5F"
     },
-    "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 45dc9fd7e221b..5dec14086101a 100644
--- a/web/app.js
+++ b/web/app.js
@@ -521,10 +521,6 @@ const PDFViewerApplication = {
 
     if (appConfig.annotationEditorParams) {
       if (annotationEditorMode !== AnnotationEditorType.DISABLE) {
-        if (AppOptions.get("enableStampEditor")) {
-          appConfig.toolbar?.editorStampButton?.classList.remove("hidden");
-        }
-
         const editorHighlightButton = appConfig.toolbar?.editorHighlightButton;
         if (editorHighlightButton && AppOptions.get("enableHighlightEditor")) {
           editorHighlightButton.hidden = false;
diff --git a/web/app_options.js b/web/app_options.js
index ac24bf1505873..3df0a95c244ad 100644
--- a/web/app_options.js
+++ b/web/app_options.js
@@ -172,14 +172,6 @@ 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 09223821964a8..4175bcf5dbe80 100644
--- a/web/viewer.html
+++ b/web/viewer.html
@@ -366,7 +366,7 @@
                   <button id="editorInk" class="toolbarButton" disabled="disabled" title="Draw" role="radio" aria-checked="false" aria-controls="editorInkParamsToolbar" tabindex="33" 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="34" 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="34" data-l10n-id="pdfjs-editor-stamp-button">
                     <span data-l10n-id="pdfjs-editor-stamp-button-label">Add or edit images</span>
                   </button>
                 </div>