Reduce Memory Usage in Mozilla Firefox Browser

Mozilla Firefox is unarguably the best web browser both in terms of security and customization. But one problem everyone faces with Mozilla Firefox is its high memory usage. The high memory usage is invisible if you have larger amount of RAM, but if you do not have that much RAM then you may experience the sluggishness of the Firefox browser. You can make Firefox use lesser amount of memory by adjusting a few of its settings. Here is how :

  1. Type about:config in the Firefox browser’s location bar.
  2. Click on the I’ll be careful, I promise! button to continue.

    Open configurations in Firefox

  3. Find browser.sessionhistory.max_total_viewers and change its value to 0. This would make Firefox not to store any pages in the memory.


  4. Similarly, change the value of browser.cache.memory.enable to false. This would make Firefox not to cache decoded images, chrome and secure pages in memory.


  5. Restart the Firefox browser and you would find that Firefox is no longer a memory hog anymore.