It is kinda laggy sometimes(it took 4 GIGABYTES of ram once, firefox with all my tabs rarely takes more than 1 gb), thus a four star rating. Maybe it is all ad-blockers thing, a good choice either way. And you can pretty easily customise what to block(even non-ads), which is pretty useful

veri bgood

nice but how can i strictly forbid any popup manually with ublock on ... firefox for ANDROID. on pc i don't use ublock but strict pop-up blocker.

Well, actually idk whether it's from this extension fault or from Firefox or from Zorin OS Lite 15.3. The icon doesn't show up in the toolbar and no options too in the add-ons manager so I cant configure it. I dont have this problem in Windows 7 and Windows 10.