WebTroller For Firefox од Vertzz

What can you do with it?
+ Play browser games and web emulators with touch buttons, D-pads and analog sticks.
+ Start from a ready-made controller (PlayStation, Xbox, Switch, SNES, Arcade and more) or build your own.
+ Move, resize, recolor and rename every button, and give it an icon.
+ Keep a separate layout for portrait and for landscape.
+ Put up to 5 modes (different button sets) in one layout, for example Walking / Driving / Swimming, and switch between them while you play.
+ Use extra tools while playing: FPS and ping readouts, screen lock, fullscreen, brightness, opacity, volume, an on-screen keyboard and an ad blocker.