The add-on is good but not user friendly.

Auto Tab Discard helps to minimize out-of-memory problems on an older computer with limited memory.

An essential add-on for anyone who keeps a zillion tabs open!

Permissions: Access your data for all websites
The extension can read the content of any web page you visit as well as data you enter into those web pages, such as usernames and passwords.

"5. Certain Third Party Transactions

add0n.com may disclose personal information to third parties to provide services that involve data processing on its behalf (e.g.: advertising"

quite excellent and it can save the shortage of the PC and make the browser faster, thumb up