Fire Fox extension is not auto locking

Have done a search and cannot find my exact problem. Have just come across from lastpass and am loving bitwarden. I am on a Win10 pc and have installed extensions on Chrome and Firefox. The Chrome extension auto locks ok but the Firefox one does not. I’ve set it for one hour and to log out but it is still active the next day. Note, I am using a laptop which has a add on to lock when closing the lid, not sure if this is the problem as Chrome extension logs off ok.

Have you tried other Vault Timeout settings? Like, have you set it for 1 minute tested to see if it locked?