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You can enable it manually with the following: > To turn on WebRender, go to about:config, enable the gfx.webrender.all pref, and restart the browser.

• vbuwivbiu 7y ago
  if you enable it & restart on another platform will it work ? how would you confirm it's working ?
  • callahad 7y ago
    It should. To confirm it's working, visit about:support and look for "WebRender" in the "Compositing" field.