--- a/browser/base/content/browser-places.js
+++ b/browser/base/content/browser-places.js
@@ -145,16 +145,17 @@ var StarUI = {
         // auto-close if new and not interacted with
         if (this._isNewBookmark) {
           // 3500ms matches the timeout that Pocket uses in
           // browser/extensions/pocket/content/panels/js/saved.js
           let delay = 3500;
           if (this._closePanelQuickForTesting) {
             delay /= 10;
           }
+          clearTimeout(this._autoCloseTimer);
           this._autoCloseTimer = setTimeout(() => {
             this.panel.hidePopup();
           }, delay);
         }
         break;
     }
   },