This is a Firefox add-on that serves two functions. First, it adds buttons for common search engines so that you do not need to select from the drop down menu. Second, if you highlight a word or phrase on a web page and press a combination of keys, it will either open a Wikipedia or Wiktionary overlay. The default keys are Ctrl+Shift+1 for Wikipedia, Ctrl+Shift+2 for Wiktionary and Ctrl+Shift+` to close the overlay. These keys can be changed in the add on preferences. You’d be surprised at how much time these simple tools can save you and stay tuned for more features or create your own!