I have turned on Webrender in FF66a (nightly) and it’s fantastic; it sped up a site I quickly threw together for a friend no end [1] and almost everything with lots of graphical painting is buttery smooth. Even though they are only starting in nightly to make it the default on Nvidia hardware it seems to work without incident so far on this 2016 AMD Radeon’d MacBook Pro. [1] https://uparchitects.co.uk/ [2] https://di…
Is there any way to enable it outside nightly builds?
Yes the same instructions should work but you might get a more buggy version of Web Render as it'll be an older less debugged version.