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Downloading big files accelerates memory leaks in firefox 5

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I knew the facts that people were complaining about memory leaks in firefox, but I didn't have any problem partly because I have 4GB machines. But that story has changed after upgrading to firefox 5. When I was trying to download 6 100MB files in firefox, memory usage of firefox increased from 200MB to 1.5 GB in 2 minutes. Actually it might have been more than that but I killed the process before its memory usage growth became uncontrollable. What is going on? It has never happened before I upgraded to firefox 5. And it happens every time when I am downloading large files.

I knew the facts that people were complaining about memory leaks in firefox, but I didn't have any problem partly because I have 4GB machines. But that story has changed after upgrading to firefox 5. '''When I was trying to download 6 100MB files in firefox, memory usage of firefox increased from 200MB to 1.5 GB in 2 minutes'''. Actually it might have been more than that but I killed the process before its memory usage growth became uncontrollable. What is going on? It has never happened before I upgraded to firefox 5. And it happens every time when I am downloading large files.

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statcomp Úinéir na ceiste
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I resolved the problem by disabling cookies in firefox. Don't have any idea why firefox only has memory leaks with some cookies but this problem has been gone after disabling all cookies.

cor-el
cor-el
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Do you have any extensions that deal with cookies?

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).