Firefox increasing rate since Firefox 1.0 was released on November 9, 2004, and Firefox had already been downloaded over one billion times. This number does not include downloads using software updates or those from third-party websites. They do not represent a user count, as one download may be installed on many machines, one person may download the software multiple times, or the software may be obtained from a third-party. In July 2010, IBM asked all employees (about 400,000) to use Firefox as their default browser. Firefox was the second-most used web browser until November 2011, when Google Chrome surpassed it. According
Browser hijacking download applications and installers such as HyperCam. It is known to install itself into Firefox, Internet Explorer, Safari, and Google Chrome Symptoms range from no symptoms at all (simple processor drainage) to complete system crashes so severe that the victim has to re-install their entire operating system. MyStart uses browser helper objects (in this case search tools) and infects users by installing MyStart search toolbar into their browser (Firefox is most vulnerable) which redirects internet users to MyStart’s websites, mystart.incredibar.com in particular. Some Internet users report that they are redirected for every search or webpage they visit. Removing Incredibar can