Ever since we started releasing home-brewed Firefox extensions here at Lifehacker, several readers have asked: How difficult is it to build a Firefox extension? For someone with a bit of programming ...

We've also previously shown you how to build a Firefox extension, so if Firefox is more your speed, you may want to check out that guide.

Watch the excellent tutorial published by AIAnimation below to learn more about the process of building animation extensions to sell two designers, illustrators and creators.

Like many Linux Journal readers, Firefox is my browser of choice. One of its core strengths is the number of available extensions. Early extensions were focused around merely changing the look of the ...