Thursday, June 2, 2011

Firefox 4 - Uses too many resources

There is a default setting for Firefox that causes it to almost peg a Core2 Duo mobile processor. The setting can be changed at the location indicated below.

Edit (Main Menu) > Preferences (Menu) > Advanced (Tab) > General (SubTab)

Uncheck "Use hardware acceleration when available"


After the setting was changed I went from having CPU usage from over 80% to less than 20%.

Also, memory usage of Firefox dropped to around 11% after the change with 10 tabs open.

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