http://extensions.roachfiend.com/howto.php http://extensionroom.mozdev.org/ http://devedge.netscape.com/viewsource/2002/toolbar/
GUID Generator: http://extensions.roachfiend.com/cgi-bin/guid.pl
Firefox Extension RDF Generator: http://ted.mielczarek.org/code/mozilla/ffinstall/index.html
http://yergler.net/blog/archives/2004/05/20/writing-mozilla-extensions
Interesting Extensions http://placenamehere.com/pnhtoolbar/ – Another web developer toolbar made from bookmarklets http://yergler.net/projects/mozcc – A reader for Creative Commons licenses