Linux - Firefox/Thunderbird Memory Leak

To solve a known memory leak problem of Firefox/Thunderbird, i.e. large amount of memory consumption, it is a way to release memory from RAM to Harddisk when minimizing to system tray.

1. Install Add-ons Minimize To Tray Enhancer
2. Configure Firefox/Thunderbird

(Firefox) Type in about:config in URL bar
(Thunderbird) Type > Options > Advanced > General > Click [Config Editor]
Right Click in the page and select New > Boolean.
Enter config.trim_on_minimize. Press Enter.
Select True and then press Enter.
Restart Firefox/Thunderbird