[babbit999]

The best thing about FF is the “about:config”. It really gives you the control like it should be. I don’t care if it’s slower than other browsers. Sadly, this is not possible yet on iOS. Like others, I use chrome if my locked down FF don’t work on a specific site.

[NiLSPACE]

Firefox, like any other browser on iOS, is based on webkit because Apple doesn't allow other engines. That's why you don't have 'about:config' there.