Dr. Orca is an Avant browser version based on Firefox 1.5 beta. The beta 1 version of Dr. Orca released few weeks ago is available for download.
At first look Dr. Orca looks just like Avant browser and Avant browser users will feel right at home, with the same look and feel, same features, menus and toolbars. But under the hood, the rendering engine is purely Firefox.
In the current beta you can not install any of Firefox’s plug-ins but it comes with Google and Yahoo toolbars already installed (although you’ll need to enable Google’s toolbar like in Avant browser, since Yahoo is the default search toolbar).
Dr. Orca is still in early beta and it has some bugs and missing some features available in Avant, but it is sure looks like a promising development and good news to the Avant browser lovers.