Orca Browser (originally Dr. Orca) is a browser based on the Gecko 1.9 engine of Mozilla Firefox 3. It is virtually Avant Browser (with Avant plug-ins support), but instead of using Internet Explorer as the base, it uses Firefox's Gecko. Development of Orca was stopped when Avant Force made Avant Browser a dual-core browser, with Gecko support built-in.
Community content is available under CC-BY-SA unless otherwise noted.