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Why is Firefox Suddenly Taking Over my CPU?

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  • Valiny farany nomen'i jclarkw
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jclarkw
jclarkw

Today Firefox has suddenly started using ~20% of my CPU capacity, causing my cooling fan to run high most of the time. Since I had been running Firefox v.149.latest, I tried updating to v.150.0, but that made no difference.

It's not Firefox by itself (only Task Manager open) but whenever I open another tab with almost any website (including this one) that CPU usage spikes. What gives?!

Details: Running under Windows 10 Pro (yes, I have installed the ESU package, good until thi8s fall) on a Lenovo P1 Gen 2. Currently running Firefox inside a Sandboxie Pro v1.17.4 sandbox.

Please Help! -- jclarkw

Today Firefox has suddenly started using ~20% of my CPU capacity, causing my cooling fan to run high most of the time. Since I had been running Firefox v.149.latest, I tried updating to v.150.0, but that made no difference. It's not Firefox by itself (only Task Manager open) but whenever I open another tab with almost any website (including this one) that CPU usage spikes. What gives?! Details: Running under Windows 10 Pro (yes, I have installed the ESU package, good until thi8s fall) on a Lenovo P1 Gen 2. Currently running Firefox inside a Sandboxie Pro v1.17.4 sandbox. Please Help! -- jclarkw

All Replies (2)

jclarkw
jclarkw Tompon'ny fanontaniana

I'm now running Firefox outside the sandbox, and almost everything I said above is still true except that this site no longer hogs CPI. Most others still do.

Since I'm now outside the sandbox, I can probably "Send Data," but that option seems not to show up in a reply...

--jclarkw

jclarkw
jclarkw Tompon'ny fanontaniana

Is nobody else seeing this problem? Or are no solutions available? -- jclarkw

Mametraha fanontaniana

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