Firefox tutorials
config.trim_on_minimize
This tutorial will show you to enable config.trim_on_minimize in Firefox's abou:config preferences, which will give you a way to make Firefox release the high amounts of RAM that it uses after running for a while.
What does this tweak do?
When you minimize Firefox normally it does not release the RAM that its using, This can cause issues on older computer or with people that are using other memory hungry programs such as Adobe Photoshop. This preference makes Firefox store its information on your Hard Drive when you minimize it there for releasing the RAM and when you un-minimize Firefox it will load the information back into RAM. You shouldn't really notice a pause or a time delay while your computer does this, and once un-minimized you will also notice that Firefox is using less RAM then it was before you minimized it. Firefox may take a few seconds to release the memory but you should see some improvement by using this tweak.
Step One
Open Firefox either by Double Clicking on the 'desktop icon'.
or
Hold down the 'windows key' and press 'R' type in 'Firefox' and Click OK
Refer to images below.
Step Two
In your address bar type about:config
Step Three
Right click anyway within the window as shown below
Select 'New'
Click 'Boolean'
Step Four
In the box that appears enter
config.trim_on_minimize
Step Five
Click 'OK'
Step Eight
Type config.trim_on_minimize into the filter bar as seen below.
Step Eight
Double click on Config.trim_on_minimize to change the value to True.
Step Nine
Close All Firefox windows.
Well Done!
You have now configured Firefox to use the minimize preference to release RAM, the next time Firefox starts to eat loads of RAM just minimize for a few seconds then un-minimize and you ll see a big decrease in RAM consumption. Remember if you see any adverse affects just restore your backup
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