41. Preferences
System
• about:config
看到的東西
• App
or
Extensions
目錄下的 defaults
preferences*.js
as
system
preferences.
• Profile
目錄下的 prefs.js
as
user
preferences.
• Merge
system
and
user
preferences
when
startup
.
42. Preferences
System
• Key-‐Value
Databases
(
JSON)
• User
Preferences
• Registry
System
• Inter-‐Process-‐Communicadon
(別這麼用)