Works with almost every website out there.

It isn't being maintained. It interferes with google suite functionality--it prevents some buttons from functioning in gmail, and it prevents click-drag from working in google maps. Among other issues.

It's decent, but I have to disable this addon completely to get imgur to load.

Works perfect. Just nice to have cosmetics.

I want to know if there is a possible way that i got detected by downloading a video withouth permission?

Sorry, gotta give it just one star.
Not working in any Linux 64 bit distro and the last couple of Firefox releases at least.

I'm running three Ubuntus, two Slackwares, and a Debian

I'll be upgrading those withing the next few days so I'll revisit this review when I upgrade and update my thoughts here.