The only reason I gave this add-on a 1 star, is because I could not give it a zero. It is without a doubt, one of the very worst add-ons that I have ever seen. Perhaps if there was just 1 bit.ly shortened URL on a page, it may be slightly tolerable, but when there are multiple shortened URLs such as with places like Twitter, the performance of this add-on is simply not acceptable. It goes like this: If the add-on cannot access a site to get the actually destination of the shortened URL, your browser will just hang until the page can be accessed. Thus it is 100% pure junk! Simply avoid and save yourself a whole lot of time and aggravation.