Firefox/Firebug extension creator wizard

Firefox/Firebug extension creator wizard
Extending Firebug, Hello World! (Part I.)
Extending Firebug, toolbar (Part II.)
Extending Firebug, options (Part III.)
Extending Firebug, localization (part IV.)
Extending Firebug, domplate (part V.)
Extending Firebug, Yahoo! Search (part VI.)
Extending Firebug, customize Net panel (part VII.)