Firefox Nightly for Android supports most desktop extensions. It is clunky to enable them (you have to create a collection and then subscribe to it) and being a

Firefox Nightly for Android supports most desktop extensions. It is clunky to enable them (you have to create a collection and then subscribe to it) and being a nightly build it does have some instability, but it works out pretty well. Only caveat I've really found is that it gets stuck on the Guardian's website (after a few clicks).