In recent years, the open-source browser Mozilla Firefox has earned praise for the ability of third-party developers to easily create extensions that add functionality. Among the thousands of home-brewed add-ons for Firefox, we've narrowed down our favorites in a collection of the best.

                                                               

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Although Internet Explorer also allows for IE add-ons, but its closed framework makes it a bit more difficult for developers. However, here is a collection of IE add-ons which may be useful to you.

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