So I just installed Firefox Beta for Android because I really needed a workaround for the missing Video Background Play Fix add on. Happy to finally get videos playing in the background again, I uninstalled the non-beta version. Soon after I realized that my "collection" is gone. I guess a "collection" doesn't work like bookmarks, because it seems that it hasn't been saved and synced across the different browser iterations on my Firefox account. I even reinstalled the non-beta Firefox for Android that I uninstalled, but the "collection" I'm missing remains non-present... Is there any hope of recovering this "collection" somehow, or did that specific data get wiped when I uninstalled that particular Firefox version from my Android phone?