Top 5/5

one of the best ad blocker out there

I stopped using Chrome because Google removed uBlock Origin from their webstore and made Chrome unusable. Firefox forever!

good

It's a great addon, but it's freezing Firefox startup. It's taken up to 7 minutes for it to release Firefox.
The icon turns yellow, and it only lets the page load when the icon turns red.
Sometimes it starts normally, but that's becoming increasingly rare.