WARNING! Installs an ad cookie without your consent! I used this add-on for one day. The next day, I opened my browser and immediately an additional tab opened with an ad for something other than this Firefox add-on. I went and looked at my cookies, which I keep very cleaned-up, and saw one for a site I have never visited: '2go2.top'. So I deleted the cookie, quit & reopened the browser and visited some known sites. Checked cookies again and there it was again. Remembered that my only new behavior with this browser was installing that add-on. So I deleted this add-on and the cookie has not returned, and no new tabs with unrelated ads.