Firefox - a powerful web browser from the community Mozilla. This browser is open source and a great community, which ultimately, perhaps, gives the program a significant advantage over competitors. It handles Web pages very quickly with a variety of content. Overall: fast, convenient and stable. It should be noted that Firefox supports powerful system of plug-ins (extensions), which can greatly enhance the browser functionality, adding a lot of features.
To sum it up: the highest quality of performance, support of all popular www-standards, user-friendly interface, stability, high speed - is the list of characteristics by which the browser has the full right to be the best.