Opera Web Browser is a free web browser that originally started as a research project back in 1995 and today continues to be a fast, safe, and secure web browser. Portable version available here. Video walkthrough available.
Opera lets you quickly pick up browsing where you left off across all of your devices. Just sign in to your Opera account to sync browsing data - bookmarks, open tabs, passwords, and typed history.
Opera was designed to be fast. Improvements have been made to speed it up on slower computers. For those on a slow internet connection, Opera Turbo can compress pages for faster browsing.
Thousands of extensions make it easy to customize Opera your way. Download the extensions and themes you like directly from Opera's add-ons catalog in the browser. With animated themes, you can bring pages to life.
Searching and navigating the web is easy, with Opera's address and search bar. Pick one of the pre-installed search engines like Google or Yahoo! or pick your favorite search engine. You can also customize keyboard shortcuts and mouse gestures.