Firefox on Android is a bit clunky, but Mozilla is currently working on a new version that will (hopefully) be much cleaner and faster. You can try it now as "Firefox Preview" on the Google Play Store.

I use it pretty much exclusively now, and though it doesn't block all ads and doesn't have addon support yet, it seems to prevent the intrusive ones from being a problem. I do keep Firefox for Android around with uBlock Origin just in case, but I rarely have to use it.