Hello, I used a clean profile for this.
Went to the popular extensions screen and installed Bitwarden.
Now going to the list of installed extensions, I see this:
"2023.7.1" seems pretty old, and https://addons.mozilla.org/en-US/firefox/addon/bitwarden-password-manager/ is showing that the last version is currently 2024.4.2.
I expect to get a recent version of Bitwarden (I have not tried the others but I think it also applies to them).
Version 0.99.127.3.1-rc (WebKit 619.1.11.111.2)
Sonoma (14)