diff --git a/chrome/content/zotero/customElements.js b/chrome/content/zotero/customElements.js
index 8f6b15aa1a..c11bfe7747 100644
--- a/chrome/content/zotero/customElements.js
+++ b/chrome/content/zotero/customElements.js
@@ -102,7 +102,11 @@ Services.scriptloader.loadSubScript('chrome://zotero/content/elements/annotation
 				
 				// Update animate attribute when the popup is hiding and trigger the fade out animation
 				this.addEventListener("popuphiding", (e) => {
-					if (!this.getAttribute("animate") || ["false", "false-once"].includes(this.getAttribute("animate"))) {
+					if (
+						// open="true" and aria-hidden="true" means it's a native menupopup
+						(this.getAttribute("open", "true") && this.getAttribute("aria-hidden", "true"))
+						|| !this.getAttribute("animate")
+						|| ["false", "false-once"].includes(this.getAttribute("animate"))) {
 						return;
 					}
 					e.preventDefault();