diff --git a/chrome/content/zotero/standalone/standalone.js b/chrome/content/zotero/standalone/standalone.js
index ec182b38c4..dfb65cd2f6 100644
--- a/chrome/content/zotero/standalone/standalone.js
+++ b/chrome/content/zotero/standalone/standalone.js
@@ -955,30 +955,5 @@ function openUILinkIn(url) {
ZoteroPane.loadURI(url);
}
-// Support context menus on HTML text boxes
-//
-// Adapted from editMenuOverlay.js in Fx68
-window.addEventListener("contextmenu", e => {
- const HTML_NS = "http://www.w3.org/1999/xhtml";
- let needsContextMenu =
- e.target.ownerDocument == document &&
- !e.defaultPrevented &&
- e.target.parentNode.nodeName != "moz-input-box" &&
- ((["textarea", "input"].includes(e.target.localName) &&
- e.target.namespaceURI == HTML_NS) ||
- e.target.closest("search-textbox"));
-
- if (!needsContextMenu) {
- return;
- }
-
- let popup = document.getElementById("contentAreaContextMenu");
- popup.openPopupAtScreen(e.screenX, e.screenY, true);
- // Don't show any other context menu at the same time. There can be a
- // context menu from an ancestor too but we only want to show this one.
- e.preventDefault();
-});
-
-
window.addEventListener("load", function(e) { ZoteroStandalone.onLoad(e); }, false);
window.addEventListener("unload", function(e) { ZoteroStandalone.onUnload(e); }, false);
\ No newline at end of file
diff --git a/chrome/content/zotero/zoteroPane.xhtml b/chrome/content/zotero/zoteroPane.xhtml
index 10be105b98..2e950d3cc8 100644
--- a/chrome/content/zotero/zoteroPane.xhtml
+++ b/chrome/content/zotero/zoteroPane.xhtml
@@ -117,34 +117,6 @@
-