mozilla extension developer - FILE struct

https://developer.mozilla.org/en/Extensions/
https://builder.addons.mozilla.org/docs/packages/addon-kit/addon-kit.html
For topics relating to extension development, the mozilla.dev.extensions
group: http://groups.google.com/group/mozilla.dev.extensions/topics.
For topics relating to XUL, the mozilla.dev.tech.xul  group:
http://groups.google.com/group/mozilla.dev.tech.xul/topics.
Knowledge Based
http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox

chrome.manifest
install.rdf

Extension path
Windows XP :
C:\Documents and Settings\User\Application Data\Mozilla\Firefox\Profiles\g5arepve.default\extensions
(the Application Data folder is the one that’s hidden).
On Windows Vista the path is :
C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\g5arepve.default\extensions
(the AppData folder is the one that’s hidden).
On a Mac the extensions folder will be at:
/Users/User/Library/Application Support/Firefox/Profiles/g5arepve.default/extensions.