Additional extension support

[fu8765]

First of all. Thank you for the hard work. This is an excellent browser for someone such as myself that kept tinkering with user.JS.

Coming from iceraven, is there any way you can integrate the code that allows them to have additional extensions?

Thanks heaps

[SkewedZeppelin]

@fu8765 I know a lot of people like their extensions, but I personally only use a very  small handful. And the only one I really care about, uBlock Origin, is already at the top of the list in Fenix. See here where I actually purposefully restrict what extensions can be installed on my desktop config. https://github.com/divestedcg/brace/blob/master/brace/usr/lib/firefox/distribution/policies.json#L19 Far too often, extensions do far more then most people realize and it is becoming increasingly common that they are taking over by malicious actors. The extension limit in Fenix is also a short-term issue, it likely will eventually be fixed by Mozilla. I am just in no rush to fix it myself. Also note: This is the no longer used repository. Please file future issues against the mull-fenix repo.

[t3dium]

This can easily just be done via custom addon collections, you can just make a firefox account on https://addons.mozilla.org/en-US/firefox/ and add desktop addons to your collection, then on mobile just click "about mull", tap the icon 3 times, then return and add your addon collection to mull.

[0xRustlang]

Also see this: #6 (comment)