Export/Import accounts only

Settings to set up a new computer quickly includes everything. You need the pop / imap accounts and Local Folder information which is in the profile and mentioned in various files. Backup manually is very simple. If using Windows then I created a question in this Support Forum with info on how to do it. https://support.mozilla.org/en-US/questions/1587693 However, if using Linux systems then the '''.thunderbird''' folder to copy depends upon whether you got the download install from the Thunderbird webpage: * https://www.thunderbird.net/en-US/thunderbird/all/ Then it will be here: ~/'''.thunderbird''' If using snap then it should be here: * home/username/snap/thunderbird/common/'''.thunderbird''' If using Flatpak then it should be here: * ~/.var/app/org.mozilla.Thunderbird/'''.thunderbird''' If using a MAC, profile should be here * ~/Library/'''Thunderbird''' Copy the Thunderbird folder as it contains everything. Once you have saved the .thunderbird folder: If you really, do not want to save all the emails that are in IMAP accounts - and let's hope you do not lose them off the server and never need to recover them and remember it would mean a complete redownload of absolutely everything. There are plenty of times, I've had to help someone get all backup emails back onto a server after a computer crash or Anti-Virus killed a load of emails and then because it was an imap account, the empty folders synch with server and killed everything on server - it really is a good idea to keep your own backup that is not dependent on a server. Look in: .thunderbird/profile name/ImapMail/ select the imap mail account folder to see contents and remove all the contents - do not remove the actual imap account name folder. Do not emove contents of any account in the 'Mail' folder as it is likely to be your only copy.