Firefox Extension Tutorial Thursday, February 17th, 2005 by MR Reader Comments 16 Responses to “Firefox Extension Tutorial” John Nunemaker Says: Thanks for the great tutorial. I have been wondering how extensions were developed, but I haven’t been motivated enough to look it up. February 17th, 2005 at 11:37 pm creaza Says: thanks for your tutorial. here is another link i found useful http://www.g