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this post was submitted on 22 Jul 2023
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This is due to DMABUF being temporarily disabled on Nvidia due to bug 1788573. Without DMABUF, Firefox has to introduce extra buffer copies to get the WebGL content rendered to the screen instead of simply sharing the buffer.
You can, however, force enable it temporarily until that bug is resolved by going to
about:config
and enablingwidget.dmabuf.force-enabled
. Or you can just wait for the Nvidia 545 driver, which should have this fixed.Thanks, I don't use external monitors, so that bug shouldn't impact me, while the config will impact me positively. Thank you for finding what I could not!