It does its job well, but uses an incredible amount of memory. It can easily completely freeze up a 4GB machine for 20-30 minutes because it's out of memory and grinding away on the swap file. I would give it 4 stars if this limitation were mentioned in the description, and 5 stars if didn't have this problem. It works fine on an 8GB machine.

It says history will be deleted after about a minute of no activity on Firefox. Very vague.

1. What is no activity? If I'm streaming a radio station, is that activity? If an app is constantly going out to look for new messages or something is that activity? If I run multiple profiles, must they all be inactive?

2. I would much rather be able to
a. Turn off the automated deletion (ON/OFF, not just setting days to ZERO).
b. Have a button to manually initiate the deletion.

В Firefox есть встроенная функция для удаления, автоматически, истории, кэша и всей остальной информации при закрытии браузера.