From 71a85e4d06a3192de62ec3f8ba32150bbfa09d7b Mon Sep 17 00:00:00 2001
From: Abe Jellinek <jellinek@berkeley.edu>
Date: Wed, 21 Feb 2024 12:47:03 -0500
Subject: [PATCH] Preferences: Delete menulist observer after disconnecting

---
 chrome/content/zotero/preferences/preferences.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/chrome/content/zotero/preferences/preferences.js b/chrome/content/zotero/preferences/preferences.js
index 2ff21cc82f..e8e309af30 100644
--- a/chrome/content/zotero/preferences/preferences.js
+++ b/chrome/content/zotero/preferences/preferences.js
@@ -487,6 +487,7 @@ ${str}
 			}
 			if (this._mutationObservers.has(elem)) {
 				this._mutationObservers.get(elem).disconnect();
+				this._mutationObservers.delete(elem);
 			}
 		};