Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

It seems the latest Firefox is locked to 60FPS max now? How can I get it do display more?

  • 6 replies
  • 1 has this problem
  • 9 views
  • Last reply by Alex4nder

more options

I'm using Firefox on Arch Linux x86_64. I have a laptop with a 144Hz display. Websites and their animations looked super smooth. However, when I upgraded to the latest version of Firefox, everything seems to be locked to 60FPS max. It's ugly and jittery as hell. If I go to https://testufo.com/ it says "UNSUPPORTED: VSYNC is not available on the Linux platform." I haven't changed my system configuration or graphics settings at all.

I'm using Firefox on Arch Linux x86_64. I have a laptop with a 144Hz display. Websites and their animations looked super smooth. However, when I upgraded to the latest version of Firefox, everything seems to be locked to 60FPS max. It's ugly and jittery as hell. If I go to https://testufo.com/ it says "UNSUPPORTED: VSYNC is not available on the Linux platform." I haven't changed my system configuration or graphics settings at all.

All Replies (6)

more options
more options

Didn't work

more options

Go to about:support and check the "Target Frame Rate" value.

more options

It says 144

more options

Try downloading another copy of Firefox and run it from the folder. Do not sign into your Firefox account and see if you have the same issue.

https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

more options

That also doesn't work.

EDIT: I tried Firefox Developer edition. TestUFO still says that Vsync isn't supported but It's running at 144FPS now so that seemed to fix my issue (at least, until Mozilla releases an update that will ruin things again).

Modified by Alex4nder