User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:126.96.36.199) Gecko/20061204 Firefox/188.8.131.52 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:184.108.40.206) Gecko/20061204 Firefox/220.127.116.11 Just Reproducible: Sometimes Steps to Reproduce: To reproduce you have to leave FF open for some time, happens for me if I leave it open overnight. This thread occupies 100% CPU. It doesn't make FF unresponsive, but does make it very slow. I'll attach 2 snapshots of the thread stacks, normal and consuming.
Created attachment 252378 [details] Normal operation This is how the stack looks like normally. You can see that this is the most CPU consuming threads in FF by context switch delta
Created attachment 252379 [details] This is when it goes wrong CPU is 50% because machine has 2 of them...
I think this is a duplicate of Bug 365653. Please reopen if it is basically different. Maybe you could attach your screenshot there?
Status: UNCONFIRMED → RESOLVED
Last Resolved: 12 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 365653
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