My Firefox app v68.11.0 on my Samsung S6 Lite (running latest Samsung FW based on Android version 11) recently just stopped being able to sign in to my Firefox account -- the sign-in page (about:accounts?action=signin?entrypoint-preferences) simply keeps swirling and not returning login/password form. Note -- I know that newer versions of the app does not have this issue, but I much prefer the UI of this older version as I can get to bookmarks/history/top-sites with one single touch. TIA.