### updated August 25 2025 ###
The crippling issue rendering the extension totally unusable seems to have been fixed - the extension version that seems to work OK again as I write this is 2025.7.1.
I am changing my rating from 1 star to 4 stars - but not 5 stars, as the previous issue is cause for concern - maybe it could break again. Also the UI / UX has become worse in my opinion in recent redisigns - more clicks to do the same thing as before, and often clicks do not do what I expected.
### end Aug. 25 update ###

Trying to use the Bitwarden Extension in August 2025, it caused Firefox to freeze for 10+ second for any operation, and the extension didn't even work - trying to fill in a password would just cause a 15+seconds freeze, and after that the password was not even filled. Disabling the Bitwarden extension caused Firefox to become lightning fast again as usual, immediately, so this was really a problem with the Bitwarden extension. This is totally unusable and unacceptable, and very sad as Bitwarden is a great service. The extension worked perfectly the last time I used it a few months ago, so this is a new issue (in the meantime I was using the Windows App, which works fine). I really hope this will get fixed quickly.