Firefox for Android 支持论坛

I am trying to sync my desktop Firefox data to my Android phone, a Samsung Galaxy S21+. In every help topic I read, it says to click the three dots on Android, go to settings and click "Sync and save data," then click "Ready to scan" and scan the QR code provided from my desktop account. The issue I am running into is that the "Sync and save data" option does not exist on my Firefox Android app. If I click on my profile on the phone, I can click "Sync" but it doesn't do anything. It does not work if I try to scan the QR code through the phone camera instead. I am at a loss for how to sync my Mozilla account on these two devices. My Firefox app is up to date. If anyone can help me I would appreciate it.

Home screen might be considered a specialized bookmark I suppose but the categories don't directly apply above. Browsers for decades have allowed a custom Url to be entered or "use current page" as home screen. I can find no option under firefox settings for Android enter it. What's the trick?

I picked last tab but that isn't the same as a fixed URL such as my bank website or Facebook page I would always want to see first.