Toolbar Tutorial Removed January 7, 2018 I have removed my Firefox toolbar tutorial from this site, since it is now woefully out of date. If you’re looking for Firefox extension development information, turn to the official documentation. Leave a Comment Email addresses are never published. Required fields are marked with *. Name * Mail * Website The following XHTML tags are allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong> Comments will be closed on March 8, 2018.