You can actually use more extensions on Android. It's just more involved than it should be. The trick is to create an "extension collection" from your Mozilla account. Then you can use any extension, and a lot of them just work.
>>joelth+(OP)
I know but it never worked for me. I followed the procedure twice, two different years, two different installs. I'm always doing something wrong. On Mozilla's side, why are they even doing that to us on Nightly?
>>pmontr+m2
It works for me on the Beta. No need to go to nightly. Mozilla was even gracious enough to allow us to go to about:config!
I don't know what you're doing wrong (all I can say is that the name of the collection is case sensitive) but I haven't had any trouble adding the custom collection settings to my Firefox installs.
>>joelth+(OP)
Yeah, I know - I ended up switching to Iceraven on my phone, though. I've heard good things about Mull too. But I didn't want to muddy the original post with all that.