is an Open Source, Firefox-based web browser available for Microsoft Windows and Linux, focusing on efficiency and ease of use. Make sure to get the most out of your browser!
Pale Moon offers you a browsing experience in a browser completely built from source with carefully selected features and optimizations to maximize the browser's speed*, stability and user experience, while maintaining compatibility with the thousands of Firefox extensions you have come to love and rely on.
is a free Web browser from SRWare. It's based on Google's Chromium core, which is the basis of many browsers, including Google's own Chrome. Like Chrome and the others, Iron is super-fast and accepts extensions, themes, and developer tools. What sets it apart is a lack of the Google-centric features that some have criticized for violating users' privacy, such as reporting your browsing habits and suggesting content (and advertising) based on the results.
I swear by these and they take FF and Chrome plugins!