The latest 155 beta introduces HJappy Eyeballs V3 which uses concurrent checking of websites to load them faster based on the method that responds the fastest - Kinda neat feature. Look forward to that in release channel.
Meanwhile, the new release chan update adds 10x seeking improvement to youTube and other streaming sites:
Tested on YouTube and seems to be accurate.
It specifically states you must enter it each session, iirc it has always said this?
If you are simply protecting your saved passwords then instead enable device sign-in which prompts for your OS code to view and access saved passwords behind encryption:
Under:
This is also useful for securing with an extra layer stored payment details for shop sites etc.
Now you will only get asked for the PIN/password you set under Windows device sign-in once that session instead of on every launch of FF which is what Primary Password does and is a bit pointless when device sign-in exists. With mine I just enter a PIN once I choose to view a password or enter a stored payment card on a web store and that is it.
Edit( Can now set system wide icon in settings too with the new update: