A question that has nothing to do with security (probably)

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Alan Karp

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Nov 3, 2025, 7:41:37 PM (6 days ago) Nov 3

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I use the Chrome browser and have a couple of hundred tabs open. Maybe once a week or so, a Chrome browser process starts using a lot of cycles (>100% of a CPU). When I quit Chrome, this process keeps spinning until I force quit it. Does anybody else see this behavior? All Chrome processes behave nicely when I restart Chrome.

My concern is that the problem has something to do with SitePassword. I've got a content script on each page that's not supposed to do anything if it's not on the active tab. I think I'm OK because the Chrome performance monitor doesn't show any tabs using a lot of cycles. (You'd be surprised how many cycles some pages use even when they are hidden.)

I'm left with one of two conclusions. Either the Chrome browser has some rare bug that I'm triggering, or my machine is running malware of some sort. (I'm running the free edition of Sophos.)