Second Life Blog

Firefox memory usage depends on the amount of installed themes, plug-ins and extensions, I’ve tested the following settings on Windows and Ubuntu, let me tell you how to cut almost 50% of Firefox memory usage

1- Set Firefox to use less memory upon minimize

• Write in the address bar about:config and press ENTER
• Make a Boolean value and name it config.trim_on_minimize and set it’s value to True.

2- Set Firefox to have fixed size of memory usage

• Search for browser.cache.memory.enable and set it to True.
• Make an Integer value and name it browser.cache.memory.capacity and set it as the below table:

Installed Ram:	Value you should set:	Comment:
256 MB	4096	also set it for less Ram
512 MB	8192
1 GB	16384
2 GB	32768	My settings
4 GB	65536

NOTE:
To restore the value to default change the value of browser.cache.memory.capacity to –1.

• You may use a plug-in called RAMBack which will cause Firefox to issue an internal notification to free up memory that is otherwise held for performance purposes; You can download this plug-in or add it to your Firefox from here.

Enjoy better browsing