I don't. I stopped fiddling with firefox long ago. The fact they kept rolling out privacy hostile features made them similar to chrome from my perspective. So I just used chrome for a few years as it was faster. In the last two years I got into Arkenfox and did the necessary for that, but it always felt to time intensesive, too easy to make a mistake. Now that mullvad-browser is available I use that as my daily driver.

I have vanilla Firefox installed but I don't mess with the settings and I barely use it. It's mostly a backup. Mozzilla corporation lost my faith a long time ago.

Mullvad browser is my go to for web browsing. I know they are not going to release some new data leaking feature overnight that I have to scramble to fix.

Degoogled Chrome with different user profiles is where I log into services. (A profile for aws, cloudflare, Lemmy, power company, water, etc). I know Firefox containers are nice, but they don't separate accounts as distinctly to my liking . I know Firefox also has multiple profiles functionality but the UI is very clunky and just harder to use then chrome profiles.