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Firefox using a lot of memory, driving up CPU

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#1 cooljay


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Posted 29 August 2017 - 02:27 PM

(Not sure if this is the correct forum for the topic but I do run Win7.)


The past few days CPU usage has been sometimes 100% with the fan running nonstop.


I have been watching the Task Manager and I noticed that Firefox shows up in TM not once, but twice, sometimes three or four times, with varying memory usage.


Right now for instance it says this:


Firefox.exe  *32           223,860 K

Firefox.exe  *32             77,256 K

Firefox.exe  *32             17,104 K


I have ONE tab open, this one I'm in right now.


Any ideas about this? When I log out of FF by the way, the whole system calms down.


Also Malwarebytes uses a lot, over 300K.


I am worried to burn out my hard drive.


A few months ago I bought a new internal battery so I doubt it has anything to do with that.

Maybe the age of the unit? Is my laptop about to bite the dust?






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#2 RolandJS


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Posted 29 August 2017 - 02:51 PM

What is the size of Firefox's cache pot?  I found out long ago that Firefox can generate cache files numbering upwards to 20,000+-.

C:\Users\[your account]\AppData\Local\Mozilla\Firefox\Profiles\njrn6og4.default\cache2\entries

Your FF path might be different, I'm using Windows 7 Professional.

Edited by RolandJS, 29 August 2017 - 03:42 PM.

"Take care of thy backups and thy restores shall take care of thee."  -- Ben Franklin revisited.


Backup, backup, backup! -- Lady Fitzgerald (w7forums)

Clone or Image often! Backup... -- RockE (WSL)

#3 cooljay

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Posted 29 August 2017 - 03:17 PM

Whoa - what??


Ok, I cleared it. Do I need to restart anything? Because not according to TM Firefox is running unchanged. :(


anyway, thanks, Roland. Was worth a try.

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