Note that the WebRender can only be enabled in the Firefox Nightly channel. To confirm that it's working, flip the pref, restart Firefox Nightly, and then search for "WebRender" in about:support.
WebRender does work on macOS (and Android and maybe Linux), but Mozilla is prioritizing a Windows MVP first (because something like 90% of Firefox users are on Windows). Work on macOS, Linux, and Android will then resume.
WebRender does work on macOS (and Android and maybe Linux), but Mozilla is prioritizing a Windows MVP first (because something like 90% of Firefox users are on Windows). Work on macOS, Linux, and Android will then resume.