Mull Browser != Mullvad Browser
I have been using mull browser for around 1 week now. I felt like mull browser is funtastic without those firefox garbages. Also the tracker blocking is at maximum. Usually firefox have strong tracking protection than any other browser like brave, vivaldi, edge, etc. None of my usual visiting webites got blocked/breaked at all.
I only have to use localcdn and ublock origin in this browser. It’s faster than official firefox but lesser than chromium but it’s ok.
But that is only if I click quit, not if I close the app.
In ddg browser it clears when you close the app or when you haven’t used it for x amount of time.
It still functions, no? It’s also exactly how LibreWolf works.
Then you need firefox focus maybe