Depending on what was wiped and how the reinstall was done, there is the possibility that the original profile may still be there. To check that (assuming Windows) - On the windows desktp, enter %appdata% in the search bar and press Enter key - this should open a window to ...appdata\roaming folder - click to the thunderbird folder and then to the profiles folder - there will be at least one profile folder, but if there is an additional one (or two), browse them for possibilities. the imapmail folder would have remnants of any IMAP accounts, the Mail folder would contain POP accounts and the Mail\Local Folder would contain other folders. The addressbook would be the file named abook.sqlite.