Hi sjburd,

Have you looked at the Knowledge Base article Firefox uses too much memory or CPU resources - How to fix? There is also some good information in Firefox uses too much memory or CPU resources - How to fix.

Hopefully this helps!

Thanks for the suggestion, Matt. Just now with only 4 windows open and nothing running in the background, Physical Memory was 59% and CPU usage going back and forth between 7 and 9%. I found an article on reducing Memory, but I am not comfortable to try messing with changing config files, etc. When I close out FF, none or only a little of physical memory is released.

Anyway, do you happen to know if there's a way to go back to an earlier version of FF that did not have this problem and what that version number is? If not, even though I like FF (until these problems) and want to support the open concept, I will have to change browsers. Thanks, Sandy

If you want to reduce memory(60%) when firefox minimize[only in windows os] there is an easy old good trick:

type in the address bar about:config

then press the button i'll be careful i promise

then right-click anywhere in the list of preferences and choose new > boolean

then type in the open window config.trim_on_minimize

then click OK, and in the next window select TRUE and click OK.

exit firefox and restart-it.

works only in windows os

see for more info :

About:config

Config.trim on minimize

thank you

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