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when running firefox periodically it will use 99% of my cpu for no apparent reason.

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As I said when running firefox it periodically uses 99% of my cpu and freezes the computer until it drops down below the 99% usage.

As I said when running firefox it periodically uses 99% of my cpu and freezes the computer until it drops down below the 99% usage.

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I'm on Windows 7, but a lot of things would apply to any system, it just that the system related stuff you may have to find out for yourself where it is.

Some posted recently and I saw they had Picassa, that's a lovely one it will index every picture on your harddrive even thumbnails and pictures in cache and temporary files. I got rid of that. Now for the things I had to take care of on this system.

Windows 7 Home Premium
Ghostwriters, scheduled tasks ☷☷☷☷

The first part are allowed scheduled task, you need to know when then occur, after that is Windows indexing -- turn if off it is one of the worst offenders, it faster to just search your drives and searching has less impact on your system than useless indexing, and then some things in Firefox (article header says it may be out of date -- unlikely though


Firefox things to turn off media indexing, page refresh.

http://dmcritchie.mvps.org/firefox/firefox-problems.htm#autoplay

media.autoplay.enabled user set Boolean set to false in about:config

browser.sessionstore.max_concurrent_tabs to 0 in about:config (sometimes set default of 3, which defeats whole purpose of seeting it to 0 as a replacement for the "bartab" extension)
(do not use the "Stop Autoplay" extension, which stops picture from showing)

Looks like I'm not stopping autorefresh though, might be related to my expectations of any change on a local drive to cause an immediate refresh but can't find such an option to refresh only local drive.

Problematic extensions

http://kb.mozillazine.org/Problematic_extensions

Look carefully through the problematic extensions, avoid phone applications such as Skype which share your band width with other in order to function, only keep such applications up when needed. Do not install the Skype extension

Avoid third party toolbars and extensions to tie into other running applications. Don't install timers in Firefox, as standalone application would be better.

由 David McRitchie 於 修改