Biggest bummer for speed dial is that you cant select a search engine which is a big deal for me and almost makes it unusable. Other than that it has super potential and i would give 5 stars if you dont care what search you use. Yahoo VS Google. I have used just bookmark sync. Which is very useful for me to sync bookmarks across different browsers and devices. Good Extension for both Firefox and Chrome which I only barely use. It is nice to be able to sync bookmarks from Firefox when I have to use Chrome.