Restricting memory usage of Firefox cache

[Firefox](www.mozilla.com/firefox/) hogs a lot of memory when using pages using [Ajax](http://en.wikipedia.org/wiki/AJAX) enabled web pages. I need to restart the browser many times during a day at the office. This hack seems to have fixed that issue. Open the location , right click and create a new key of integer type. Key: ```bash browser.cache.memory.capacity ``` Value: ```bash 16384 ```