Firefox 21.0 beta

Mozilla Firefox is an open source web browser with a clean design, providing excellent browsing speed and very powerful customization tools.
It enables you to get to your favorite sites quickly – even if you don’t remember the URLs. Type your term into the location bar and the autocomplete function will include possible matches from your browsing history, bookmarked sites and open tabs.

The location bar learns as you use it - over time, it adapts to your preferences and offers better-fitting matches.