There are thousands of NTP extensions/add-ons out there but this one is among the best. For mobile, so essentially Kiwi Browser & a handful of others that allow installing ANY extension, I dare say it's my favorite NTP. Especially once you start theming and customizing things! If ext/add-ons aren't an option, you can still use NextNTP at its URL

PS - FF & its many forks can do the same (install any addon within their respective add-on store that is), but it's not the default behavior. You need to "trick" them into thinking you're on desktop, i.e., switch to desktop view (very trixsy) and then navigate away from mobile addon site to the desktop addon site (or just wait to be prompted to do so when the mobile site loads and is like, "woah, what's this desktop PC doing in here?"

PPS - Eduard, maybe consider uploading NextNTP to the FF mobile add-ons store? Since mobile's where it shines brightest, IMO. Also, an update to 2.0.1 would be sweet