Sorry, a pool isn't a pool without P in it.
I wouldn't use any other extensions, especially something like Chamaleon for Mullvad browser though.
Extensions, specifically the ones that change how a website behaves or how a website sees the user (such as an adblocker or a user agent string switcher) can be detected. Mullvad only comes with NoScript and uBlock Origin which is enough most of the time, and installing other extensions can be used to fingerprint you, especially since Mullvad tries to have every user seem like the same user to websites (which is why things such as letterboxing are enabled).
That's not the original commenter.
Browser development might not be sustainable with user donations, but it sure as hell is sustainable when you get 400 million bucks by Google every year.
Organic Maps is good enough for most cases. Did you try that?
This video explains pretty well how Firefox is turning worse on the privacy aspect of things.