Firefox for Android should have an open ecosystem of extensions by the end of the year. 
blog.mozilla.org Prepare your Firefox desktop extension for the upcoming Android release
In the coming months Mozilla will launch support for an open ecosystem of extensions on Firefox for Android on addons.mozilla.org (AMO). We’ll announce a definite ...
In the coming months Mozilla will launch support for an open ecosystem of extensions on Firefox for Android on addons.mozilla.org (AMO). We’ll announce a definite launch date in early September, but it’s safe to expect a roll-out before the year’s end.
