Firefox 4.0 was released hardly some months ago and now Firefox 5.0?
They have gone crazy
http://www.mozilla.com/en-US/firefox/5.0/whatsnew/
They have gone crazy
http://www.mozilla.com/en-US/firefox/5.0/whatsnew/
lol they have not gone crazy, just have switched to a Google Chrome like development process
Since we are going to continue to increment our major versions with every new release (i.e. 6.0, 7.0, 8.0, 9.0) those numbers will start to move a little faster than before. Please don’t read too much into the pace of version number changes – they just mean we are moving through release cycles and we are geared up to get fresher releases into your hands!