I see no reason to use any other browser than Firefox and maybe Librewolf.
So Mull browser, right?
Yeah top 4 browser are Firefox, librewolf, tor, and mullvad for sure.
mull and mullvad are at least two different things
Autocorrect so strong it turns your browser into a VPN
There is a Mullvad Browser.
Free the internet with Mullvad Browser

The Mullvad Browser is a privacy-focused web browser developed in collaboration between Mullvad VPN and the Tor Project. It’s produced to minimize tracking and fingerprinting.

Mullvad VPN