With the latest update on Android (80.1.2) I have lost two features. 1) I can no longer rearrange the tabs. Collections are great, but they don't replace the old option to manually change the order of tabs. (By the way, Google recently added it to Chrome.) Is there a way to rearrange tabs in the new Firefox? Perhaps I am missing something. 2) I can no longer play YouTube audio in the background. Previously I used add-on. Now when I start playing YouTube in mobile mode, I get the correct notification with a pause / play button, but after pressing the Home button, the sound and the notification disappear. When I start playing in desktop mode and press the Home button, the notification remains, but the sound stops after about 50 seconds. Pressing the button in the notification has no effect. I am using Pixel 2 with Android 10. Is it a bug? Can I have the background sound back? Thanks,  Yury