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Firefox Unusable Because of Excessive CPU Usage

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  • Last reply by jclarkw
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jclarkw
jclarkw

I've just opened one simple Web site (in addition to Mozilla), and already CPU usage sits at about 20%! Please refer to my recent posts here at "Why is Firefox Suddenly Taking Over my CPU?" for the problem description. I'm re-posting simply in hopes that I can "send data" on this one from outside my sandbox. Regards -- jclarkw

I've just opened one simple Web site (in addition to Mozilla), and already CPU usage sits at about 20%! Please refer to my recent posts here at "Why is Firefox Suddenly Taking Over my CPU?" for the problem description. I'm re-posting simply in hopes that I can "send data" on this one from outside my sandbox. Regards -- jclarkw

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jclarkw
jclarkw Question owner

"Did you sign in to Mozilla? Help us keep your account safe by approving your sign-in on: Firefox on Windows 10 Silver Spring, MD, United States (estimated) Sunday, Apr 26, 2026 5:16:19 PM (EDT) If yes, here is your authorization code: 911789 It expires in 5 minutes."

I finally saw this message in time, but what do I do with it??? -- jclarkw

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