Re:Mozilla Project Fusion: Tor Integration into Firefox
by classichasclass on Friday June 01, 2018 @09:08PM
(#17211968)
No, not nobody. OverbiteFF was implemented in nearly exactly that fashion, and 100% JavaScript.
https://addons.mozilla.org/en-US/firefox/addon/overbiteff/
But, not possible anymore (without tricks).
You could, kind of, before Firefox 57 (or at least, at some point). Implementing nsIProtocolHandler/nsIChannel/etc. correctly was difficult (and probably not from JavaScript), and distribution problems meant nobody did it.