

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues. Remove checkmark: "Use hardware acceleration when available"Ĭlose and restart Firefox after modifying the setting for changes to take effect.

Remove checkmark: "Use recommended performance settings" Options/Preferences -> General: Performance.You can try to disable hardware acceleration in Firefox. do NOT click the "Refresh Firefox" button on the Safe Mode start window Full-screen fades actually use a lot of computing power, and if you dont have a super powerful machine, you may find animations (and video) acting.switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes.Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is is causing the problem.
