How to Change Firefox Frame Rate for High Refresh Rate Monitor

Last updated: January 21, 2021

Running Ubuntu with high refresh rate monitor? You may found that the Firefox web browser does not match with your monitor’s native refresh rate.

This is a simple tip shows how to change the refresh rate of Firefox, though you have to first set the system refresh rate (Settings -> Displays) to match your monitor.

1.) Open Firefox and type about:config in address bar and hit Enter. And click the button which says ‘Accept the Risk and Continue’.

2.) Next in the filter box, type layout.frame_rate and click edit the key value to your monitor’s native refresh rate (144 in the case).

That’s it. Restart Firefox and enjoy!



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