[mahouse]

Firefox on Android is awful. Try to load any mildly heavy webpage (such as Verge) and scroll through it, you'll see how it struggles. (This on a Nexus 5.)

[Grue3]

The solution is not to load awfully slow webpages like Verge (see [1]), not to mention their content has been sub-par for a long time.

[1] http://blog.lmorchard.com/2015/07/22/the-verge-web-sucks/

[mahouse]

Verge is liberal trash, but that does not mean it cannot be used as a benchmark.

That said, it can be browsed well on Chrome, so it should work on Fx as well.