As we know, Firefox has problem with the memory usage. It makes the Firefox load slow, use too many resources and drag our computer down. Here are 5 tips on how you can use to handle and improve Firefox memory usage.
1. Reduce memory usage when minimize
This tip will reduce the memory usage when each time you minimize your Firefox. Actually what it does is, Firefox will let Windows to claiming back the memory used when it minimize.
- Start up Firefox
- Type in about:config in the address bar and hit Enter
- Right click and choose New > Boolean
- Type config.trim_on_minimize in the pop-up box and hit Enter
- Select True and hit Enter.
- Restart your Firefox
2. Fixed cache capacity
Every time new page is loaded, Firefox will cache the page so it doesn’t need to load again to be redisplayed. By default, this setting was set to -1 which mean, Firefox use the cache memory depends on your RAM size. Here is how to fix the cache capacity use for your Firefox.
- Start up Firefox
- Type about:config in the address bar and hit Enter
- In the filter, enter this string browser.cache.memory.capacity
- If you set to 0, Firefox will not cache any pages. If you want to customize to other value, read here.
Note: browser.cache.memory.enable must be True if you decide to change the integer.

