@go12 mentioned in Bitwarden extension for Firefox no longer working with bio-metrics or PIN that there’s a delay in getting the extension update processed through the firefox signing/publishing process - he mentions sideloading the unsigned extension from github as a workaround, however, sideloading of unsigned extensions in firefox is only available in certain editions, no doubt to make it harder to bypass security requirements for the majority of people for safety reasons.
My workaround has been to once, open the side bar with shift-alt-Y to allow me to actually auth manually then, disable “Ask for biometrics on launch” in the extension.
Quite a pain, but hopefully the extension update issue will be resolved soon.