Multiple issues with iOS app all started a few months ago - can't sync or send tabs

iOS 15.8.3, FF Version 133.2. A couple of months ago I started having a bunch of issues with the iOS app simultaneously. First I couldn't get my tabs to sync. Then I signed out and had a hard time signing back in-- it just wouldn't work. Now I am finally signed in, but the app isn't working like it used to. I haven't been able to sync tabs since then now matter how many times I try. It still shows tabs for stuff I read months ago. I can't send tabs from desktop to my phone (but I can send from my phone to desktop with no issues). Finally, the tabs are all weird now-- they are huge (see pic). I have tried uninstalling and reinstalling 20 or 30 times. I'm considering going back to Safari because the main reason I use Firefox is for phone/desktop connectivity and it just isn't working anymore. Any ideas?