I last updated Firefox on Feb 5, and had Ublock, Privacy Badger, and Search by Image we add-ons. Tonight, just randomly, I noticed that typed text wasn't appearing in the text box (although the suggestions showed up in the keyboard) at all on every webpage and site. Uninstalling and reinstalling (along with the add-ons) did the trick. I am really curious what the root cause was. Hopefully nothing sinister. I'm on a TCL 30XE 5G running Android 12.