Bug 865250 - Part 1: Define all properties of the pref data obviously. r=mleibovic
Bug 865250 - Part 2: Remove the needless try-catch statement from BrowserApp.getPreferences(). r=mleibovic
Bug 865250 - Part 3: Use & merge switch statements instead of many if-else statements in BrowserApp.setPreferences(). r=mleibovic
Bug 865250 - Part 4: Merge duplicated paths in switch statements. r=mleibovic