diff --git a/chrome/content/zotero/customElements.js b/chrome/content/zotero/customElements.js
index 2bc164cca5..794ad5d6ba 100644
--- a/chrome/content/zotero/customElements.js
+++ b/chrome/content/zotero/customElements.js
@@ -118,6 +118,8 @@ Services.scriptloader.loadSubScript('chrome://zotero/content/elements/annotation
 				this.addEventListener("popuphiding", (e) => {
 					if (
 						this !== e.target
+						// Don't animate the popup if it's a submenu
+						|| this.parentElement?.parentElement?.localName === "menupopup"
 						// open="true" and aria-hidden="true" means it's a native menupopup
 						|| (this.getAttribute("open", "true") && this.getAttribute("aria-hidden", "true"))
 						|| !this.getAttribute("animate")