Firefox users can unearth two Easter eggs exclusive to the browser. The Book of Mozilla is accessible by typing 'about:Mozilla' into the Location bar. The browser's About page is written as apocalyptic literature, Book of Revelation-style. Each time a new version of Mozilla is released, a new verse appears. The first coincided with the release of Netscape Navigator 1.0 in December 1994. There is a cryptic message behind each verse.
The second Easter egg is found by typing 'about:robots' into the Location bar. A robot greets you with cute messages borrowed from popular culture. The Firefox tab reads 'Gort! Klaatu Barada Nikto!', a phrase uttered by the character Helen Benson in the 1951 movie The Day the Earth Stood Still to prevent the robot Gort from destroying Earth.