Install xul-ext-self-destructing-cookies by entering the following commands in the terminal:
sudo apt update sudo apt install xul-ext-self-destructing-cookies
Description:
delete cookies and LocalStorage after tabs using them have been closed
With this addon installed, Firefox will delete cookies and LocalStorage when there are no longer any open tabs using those cookies or LocalStorage entries. Sites whose cookies or LocalStorage you want to keep may be whitelisted.
Homepage: https://addons.mozilla.org/firefox/addon/self-destructing-cookies/
Version: 0.4.12-1
Section: universe/web