Tech Xpress

Limiting RAM usage in Firefox

Almost everyone is aware that Firefox is a ferocious RAM guzzler.
If you doubt it, just press Ctrl + Alt + Del to open the Windows Task Manager and click the Processes Tab where you will find Firefox is the most memory intensive application running.

Luckily there is a Firefox tweak that may just limit RAM usage by the browser.

1. Type about:config in the address bar and hit Enter. A screen similar to the one shown in the image below appears.


2. Now carefully look for the key browser.cache.memory.capacity and set its value to a desirable limit, keeping in mind the RAM in your machine.

According to computerworld, for RAM sizes between 512 MB and 1 GB start with a value of 15000 and for RAM sizes between 128 MB and 512 MB start from 5000.

3. If you can't find browser.cache.memory.capacity, don't worry, you can manually create the key.

Right-click on any one of the keys or on the screen. Select New >> Integer.
A box is displayed where you have to enter browser.cache.memory.capacity, followed by another dialog box which prompts you to enter a value we came across in the second point of this post.


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posted by Vijeesh Ravindran, Wednesday, February 07, 2007


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