Firefox插件开发

How to develop firefox extentions?
I found a tutorial with PDF filetype,but there's no Chinese version available.

1.Development Overview
http://www.rietta.com/firefox/Tutorial/overview.pdf

2.Environment Setup
http://www.rietta.com/firefox/Tutorial/env.pdf

3.Configuration Files
http://www.rietta.com/firefox/Tutorial/conf.pdf

4.Creating GUIs
http://www.rietta.com/firefox/Tutorial/guis.pdf

5.The Backend
http://www.rietta.com/firefox/Tutorial/backend.pdf

6.Preferences
http://www.rietta.com/firefox/Tutorial/prefs.pdf

7.Localization
http://www.rietta.com/firefox/Tutorial/locale.pdf

8.Distribution
http://www.rietta.com/firefox/Tutorial/dist.pdf

9.Security
http://www.rietta.com/firefox/Tutorial/security.pdfa