They dreamed of a better browser . . . and before you could say "explore no more," Firefox was born. But already you want more. Tighter security, greater functionality. A custom installation for Linux. Maybe even that unique extension you've always dreamed of creating. Well, if you want to tweak the Fox, here are over 400 pages of ways to do it. From hacking profile settings to cracking links and cleaning out the cookie jar, this is the stuff that...