Firefox's goal is to reclaim a vital artifact lost for humanity a hundred generations ago in Browser Wars: the Interweb, a huge web embedded in the surface and atmosphere of the planet Earth. Her arch enemy is the Interweb Exploder, a giant monster that repeatedly tries to blow up the Interweb, without much success, and zombifies people that connect their computers to it. Both Firefox and the Exploder are web browsers: their duty is to patrol controlled areas of the Interweb and fight minor saboteurs and wreckers.
As a true superhero, Firefox has a sidekick: her younger sister, Mozilla Thunderbird. The relationship between the two is not an easy one, as Thunderbird envies Firefox for her coolness and popularity and Firefox envies Thunderbird for her ability to fly, but nevertheless they are good friends. Thunderbird works as Firefox's mail agent, reading letters asking her for help, as well as delivering Firefox's letters to her fanboys to the nearest post office. Although Firefox rarely replies to these fanboys, as she's too busy saving the world.
Problem is just that after 20min of usage firefox looks like this:
Their bugtracker also got a nice story:
God hates furries; therefore, by deduction, God hates Firefox. God did not yet dare to actually challenge her to a duel, even in his ultimate, world-annihilating form known as Godzilla, but an increasing number of so-called-experts actually believe that, should such a fight happen, Firefox would easily win.
It is also a well known fact the Steve Jobs hates furries; therefore, by deduction Steve Jobs hates Firefox. Unlike God, Steve Jobs is determined to assimilate Firefox using his latest invention, Safari, and aid his buddy Bill Gates and his browser Idiot Exploiter on their war on furrydom!