The Adobe Flash Player Settings screen will open.

Right-click Hold down the Ctrl key while you click on the video player and click Settings… in the context menu.

Navigate to a page that shows a Flash video.

This can ease resource usage in case of a dedicated graphics card. If Adobe's Flash Player plugin is installed, rendering Flash content in full screen can be accelerated by hardware. Please see End of support for Adobe Flash for more information.

NoScript allows you to selectively enable and disable scripts running on websites.Įnd of Flash support: Like other browsers and Adobe, Firefox ended Flash support at the end of 2020.

Adblock Plus and uBlock Origin allow you to hide ads on websites.

Some extensions allow you to block unnecessary content for example: See the Content blocking Enhanced Tracking Protection article for details. Firefox's built-in content blocking can help save resources by preventing third-party tracking content from loading. Many web pages have content you don't need, but which still use system resources to display its content.

For more information on starting Firefox in Safe Mode and on how to find which extension or theme is causing your problem, see Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.

In Safe Mode, extensions and themes are disabled, so if you notice a significant improvement, you can try disabling or uninstalling extensions. To determine if an extension or theme is causing Firefox to use too many resources, start Firefox in its Safe Mode and observe its memory and CPU usage. See Restore previous session - Configure when Firefox shows your most recent tabs and windows for details.įirefox may grind to a halt due to operating system issues, such as a pending Windows update, that can be resolved by restarting your computer.ĭisable resource consuming extensions and themesĮxtensions and themes can cause Firefox to use more system resources than it normally would. You can configure Firefox to save your tabs and windows so that when you start it again, you can start where you left off. A workaround for this is to periodically restart Firefox. Update Firefox to the latest release.įirefox may use more system resources if it's left open for long periods of time. The latest Firefox version may include performance improvements.

13 Use additional troubleshooting tools.

4 Disable resource consuming extensions and themes.

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