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How do I move my contacts in Thunderbird from old computer to new computer (both windows 10)

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I am trying to move all my contacts from an old computer to a new computer. Both are windows 10 and both have Thunderbird installed. I am slightly technology-challenged, so please have patience with me. I'm sure I am making this harder than it is.

I am trying to move all my contacts from an old computer to a new computer. Both are windows 10 and both have Thunderbird installed. I am slightly technology-challenged, so please have patience with me. I'm sure I am making this harder than it is.

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The recommended way to do this would be to copy a set of files known as your profile. For Windows users, there is a tool designed to make this easy.

http://mozbackup.jasnapaka.com/

While it is also possible to copy just your address books from one machine to another, this is a slightly more fiddly procedure. But if moving your entire profile doesn't suit your needs, ask again and someone will guide you through address book export and import.