For some reason, when I add a website to my blacklist, I don't see it listed in the actual blacklist itself when I go into "Settings".

It also does not automatically clear the settings history for all sites added to the blacklist when I close the browser. For example, I added reddit.com to my blacklist and the history is still there when I reopen the browser.

This all happens even when the "Enable Clearing Blacklist on Windows Close" tick box is checked.

I think the performance of this add-on is spotty at best.