Perhaps you can take a screenshot or just write here the exact error-message of Bitwarden for your failed login?
I have tried my Firefox and Bitwarden addon on Windows 11, here no problem to login
You could try to turn-off Firefox "Enhanced Tracking Protection" for Bitwarden related website:
Bitwarden Web Vault
View attachment 272869
ok updated reported, back in CentOS_7, FF. Security is set to standard, under Enhanced Tracking Protection | manage exceptions... the box is empty, no url listed which makes sense, so I try to add the url for Bitwarden and it will NOT let me add a url even though the place is there to enter them. A dead zone, I type, nothing happens, seems like it must be admin acct thing, but this is Linux, I am the admin and usually when Linux needs an admin authentication it asks for it?? As for the error, at website login I get a RED popup in the top right corner saying:
An error has occurred.
Username or password is
incorrect. Try again.
Same error popup when I try the BW extension. Still running vm_CentOS and logged into MT, let FF save and enter the login info in the FF pw saver. I'm now more convinced this BW issue is unique to CentOS_Firefox so I'll ask at CentOS community (or BW support). Other than this snafu, vm_CentOS is nicely stable fast & responsive, seems just tad quicker than vm_win10 and those are almost indistinguishable from win10_Host. Bitwarden failure on CentOS is not a deal breaker, I should have other ways (apps) to store pw and think I'm secure (may be built-in to CentOS?)...