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Firefox UI freeze

  • 2 replies
  • 0 have this problem
  • 2 views
  • Last reply by jonzn4SUSE

Jeenu
Jeenu
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With recent releases, I've started noticing that Firefox UI freezes seemingly randomly. When it does, the UI doesn't respond to interactions, and there's no visible change in the UI, either - for example, if I switch to a different tab after the UI froze, there's no visual sign of switch happening. However, if I were to alt-tab to another window, then then UI looks as if it had responded behind the scenes. I.e., the tab switch were somehow kept pending until at the point of alt-tab.

I've had this happened on two different machines, both running the latest version (106.0.1), but this was observed even with 105, I think.

FWIW, I'm on Linux; I've tried both with and without hardware acceleration. Unfortunately, I don't have consistent/sure reproducer; not have I observed any particular pattern of interaction that'd lead to this.

I was going to file a bug, but thought posting here before I do that.

With recent releases, I've started noticing that Firefox UI freezes seemingly randomly. When it does, the UI doesn't respond to interactions, and there's no visible change in the UI, either - for example, if I switch to a different tab after the UI froze, there's no visual sign of switch happening. However, if I were to alt-tab to another window, then then UI looks as if it had responded behind the scenes. I.e., the tab switch were somehow kept pending until at the point of alt-tab. I've had this happened on two different machines, both running the latest version (106.0.1), but this was observed even with 105, I think. FWIW, I'm on Linux; I've tried both with and without hardware acceleration. Unfortunately, I don't have consistent/sure reproducer; not have I observed any particular pattern of interaction that'd lead to this. I was going to file a bug, but thought posting here before I do that.

All Replies (2)

Jeenu
Jeenu Question owner
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There's a patch release for this similar-sounding bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1793748. I'll see if I get more freezes with this fix in.

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
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I started seeing the freezing back in 102, but lately it's consistently happening more in Windows for me. Not seeing the issue in Nightly. Sometimes I just switch to Nightly or Dev and watch the clock to see how long before it comes back to life. It usually comes back around 4mins.