Hiya all,
this works fine if you type the command
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user
but then quit Safari and restart it. Then a question appears if you wish to activate a Bitwarden extension. Click on the button. Then it works signing in again etc.
Thanks for that.
Would be helpful if it was added to Help in Bitwarden for macOS!!!