I didn’t find many comparisons between the two let alone a recent one. So they’re both packages for changing Firefox prefs for better performance and or privacy. I’m interested in applying them to Zen Browser. Can you provide detailed comparisons and if I should you use both?
To be honest, I thought the ux was the appeal of Zen, since if I wasn’t going to use that I’d probably use Mullvad browser, or vanilla FF with arkenfox