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Process chewing up CPU but not connected to the websites I have open...help

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  • 1 has this problem
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  • Last reply by FredMcD

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Hi all, I usually have about 5 windows open, just regular websites. Suddenly my fan goes beserk and I look at the processes where on one firefox.exe the CPU is at 40-50 and everything slows to a crawl. When I press end process, it shuts down, the fan stops and browser speed goes back to normal. What is running in the background and how do I stop it?

Thank you

Hi all, I usually have about 5 windows open, just regular websites. Suddenly my fan goes beserk and I look at the processes where on one firefox.exe the CPU is at 40-50 and everything slows to a crawl. When I press end process, it shuts down, the fan stops and browser speed goes back to normal. What is running in the background and how do I stop it? Thank you

All Replies (1)

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https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

https://support.mozilla.org/en-US/kb/firefox-takes-long-time-start-up

https://support.mozilla.org/en-US/kb/quick-fixes-if-your-firefox-slows-down


MemTest LAST UPDATED : 12/04/2020 Could you please run a tool from http://memtest.org/ in order to check the integrity of your RAM?

You will need a thumb or disk drive to install it on.


Do you let Windows handle the page file or did you set a fixed size ? If you use a fixed size for the page file then try the former and let Windows handle the page file. How to determine the appropriate page file size for 64-bit versions of Windows {web link}