XUL:Attribute:preference.type

type: Type: one of the values below; The preference type which should be one of the following values.

bool: A boolean set to either true or false. Usually a checkbox would be connected to these preferences.
int: An integer
string: A string
unichar: A Unicode string
wstring: A localized string. In this situation the preference will save the path to a property file which contains the actual value of the preference.
file: A file. The file path will be stored in the preferences.

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