I installed the mull browser revently. People who are familiar with this will know that it’s a fork of firefox android. It’s hardened but I haven’t noticed much difference b/w the two. Mull has a few visible tweaks like Https mode by default, strict protection etc. but I haven’t come across other backend/not so visible changes. How is it different from firefox android?
It does the canvas anti fingerprinting with it’s letterbox style display… Is strict with cross site cookie denial. A few more differences. Check out mulls site. I found it pretty detailed in its explanations