In 2003 Mozilla's browser, Firefox, started competing with Internet Explorer, becoming more popular than it quickly. A cross-platform browser, it works on Windows, Mac OS X and Linux, and it is one of the most standard-compliant browsers. Among its most appealing characteristics are a better rendering of the web pages compared to Internet Explorer, add-ons and extensions to personalize your searches, session restoration, a download manager and pop-up blocking. It also features the all-in-one address and search bar, although it also has a separate search bar that you can personalize to browse in Google, Yahoo, Bing, or even other websites, like dictionaries, Wikipedia, etc. It supports HTML5, CSS3 and it enables developers to create full-screen video content and apps.