Trouble copying password

Recently installed Bitwarden Firefox plugin on an Imac. When I try to copy a password from Bitwarden, I click on the key icon and it says ‘password copied’, but nothing pastes into Firefox; it’s like the clipboard is empty. Any advice?

Some websites don’t allow Copy/Paste into password/username files,

have you Tried Right-Clicking on the Password/Username Field > Bitwarden > AutoFIll, and Selecting the login you want to use?

Otherwise you can use a Copy/Paste anywhere Plugin for firefox here is one I like, Its not PG, so i put it into a TinyURL.

Summary

https://tinyurl.com/y9lcvdwy

Lastly if you copy, and try to paste into Notepad does that work?