FireFox Memory Usage

FireFox is my default web browser. I have a couple of FireFox extensions that I can’t live without. The major issue with FireFox is memory consumption. Here’s how I handle this problem.

1. Change the maximum number of URLs you can traverse through the Back/Forward buttons.


You can change this setting by typing about:config in the address bar. For more information, go to and search for “browser. sessionhistory. max_entries”.

2. Change the cache for recently visited pages.



3. Change the image and chrome cache.



4. Use Windows swap memory.



5. Uninstall rarely used extensions and plug-ins.

6. Install the QuickRestart extension from and make sure you have “Show my windows and tabs from last time” chosen in the options dialog.

If you see FireFox memory usage is getting really big, do a quick restart.

7. If you want to have an idea what is in the memory cache, you can go to


See for more details.

If you have other ways to improve FireFox’s memory consumption, please let me know!

Posted in Tips.

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