The latest update of Firefox for Android (130.0 (Build #2016041319)) removed the ability to swipe away the "Tab Closed Undo" bar that shows up when closing a tab. If a user closes the last tab, a purple-ish bar appears at the bottom of the screen that reads "Tab Closed" on the left and "Undo" in a different font on the right. In previous versions of Firefox for Android a user could swipe away this bar to make it go away. In the current version that is no longer possible and I would really appreciate having that back. (Honestly I would actually really appreciate never seeing the bar since I can access closed tabs via the History and I really dislike the bar.)