How to run firefox in Wayland?

Firefox is not running in wayland mode by default. The command below is to run firefox browser in wayland:

MOZ_ENABLE_WAYLAND=1 firefox &

You can also put this in your desktop's shortcut for firefox in wayland environment.

To verify whether Wayland support is enabled, go to about:support,and check “WebGL 1 Driver 

WSI Info” and/or “WebGL 2 Driver WSI Info”. If they say something about GLX, Wayland support 

is not enabled. If they say something about EGL, it is. 

That's all there is to it. Cheers