(In reply to Takashi Iwai from comment #1) > Could you try 6.9.4 kernel in OBS Kernel:stable repo? > http://download.opensuse.org/repositories/Kernel:/stable/standard/ > A potential fix patch is already included there. with kernel 6.9.4-2.g5283f1b-default I don't see the Firware Bug message anymore, and Firefox performance is much better now. Thanks, feel free to close the bug