Change Personal setting
How do I change my e mail address?
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- User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.57.2 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2
Can you be more specific? Like, your Gmail? If it's something like that, Mozilla Firefox has nothing to do with it. And, here isn't the place to ask to how to change your email address, unless it has something to do with Thunderbird or somehow Firefox.