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Firefox UI is laggy, but was responsive before

  • 1 reply
  • 2 have this problem
  • 24 views
  • Last reply by mk838

mk838
mk838
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The firefox on my laptop (archlinux) used to be fast and responsive, but it got laggy some time ago. Every UI part seems to lag and be choppy. YouTube videos are unwatchable, scrolling is laggy as well as writing this text.

I already tried a new profile and disabled/reenabled hardware acceleration, but there was no improvement. The cpu usage and memory usage is low. Maybe the reason for this problem is the built in combination of Intel and NVidia GPUs (Optimus), but it used to work well.

Any help is appriciated because Firefox is unusable this way.

The firefox on my laptop (archlinux) used to be fast and responsive, but it got laggy some time ago. Every UI part seems to lag and be choppy. YouTube videos are unwatchable, scrolling is laggy as well as writing this text. I already tried a new profile and disabled/reenabled hardware acceleration, but there was no improvement. The cpu usage and memory usage is low. Maybe the reason for this problem is the built in combination of Intel and NVidia GPUs (Optimus), but it used to work well. Any help is appriciated because Firefox is unusable this way.

Chosen solution

Downgrading to Firefox 46 fixed the issue. I might file a bug report

EDIT: Setting gfx.xrender.enabled to true fixed the issue as well. See https://bugzilla.mozilla.org/show_bug.cgi?id=1263222

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mk838
mk838 Question owner
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Chosen Solution

Downgrading to Firefox 46 fixed the issue. I might file a bug report

EDIT: Setting gfx.xrender.enabled to true fixed the issue as well. See https://bugzilla.mozilla.org/show_bug.cgi?id=1263222

Modified by mk838