Midori is a Web browser that aims to be lightweight and fast. It is based on WebKit, the same layout rendering engine used by Safari. It offers standard features such as a tabbed interface, support for bookmarks, browsing history and a customizable built-in search engine. It's also fast, and doesn't require installation so you can even run it from a USB key.

Features

Native GTK+2/ GTK+3 and WebKit.
High focus on Private browsing, user scripts and customizable keyboard interface.
Adblock, form history, cookie management, RSS feed panel, external download managers (wget, SteadyFlow, FlashGet).