Had the same thoughts which is why I built mindfirewall in the first place, glad to hear this is something you'd like.

Firefox is super easy to support from a chrome extension so will add that next (just didn't have the time yet).

If you want to use mindfirewall on your

Android: Download Kiwi browser

iphone: Download Orion browser

These should let you use mindfireall on your phone, although let me know if you run into any issues. My twitter is @ navigatoragi and my email is [email protected]