- Below are a few Firefox performance hacks, tweaks, and productivity enhancements that can be made via the About:config of Firefox.
To quote: Make Firefox Give Back RAM When Minimized
To enable the setting so that Firefox gives back RAM, do the following:
1) In the Firefox address bar type: about:config and then hit Enter.
2) In the "Filter" search, type: config.trim_on_minimize
3) Right click on...