roll back to previous version of TBB - saved logins and tabs lost after tor browser bundle upgrade (8.5)

hi devs,

i'm not a developer and i don't know how to report bugs. i only know that after today's forced (and usually welcome) upgrade of the tor browser bundle to version 8.5 all my tabs haven't been recovered and my saved logins don't work. this means i can't even access my mail and i lost all tabs i had open. i don't want to start a discussion about how insecure it is to save passwords or browser history, i just want to have an usable tor browser, at this point security is no longer a priority and i'd rather have a working insecure browser rather than an unusable secure browser. can someone please help me learn how i can roll back to the previous version of the tor browser bundle? this is the first time the tor browser breaks for me after an upgrade and i'm quite desperate now

thanks

Trac:
Username: rollback-question