Enable Maildir storage in Thunderbird #

UPDATE: See Convert mbox-based Local Folders to Maildir in Thunderbird 102.

Maildir offers a number of advantages over mbox. Thunderbird 38 offers experimental support for Maildir; read the warnings and caveats before enabling.


  1. Thunderbird > Preferences > Advanced > Config Editor...
  2. Search for mail.serverDefaultStoreContractID
  3. Change the default @mozilla.org/msgstore/berkeleystore;1 value to @mozilla.org/msgstore/maildirstore;1
  4. Restart Thunderbird



A few notes on the "death" of Thunderbird:

/misc | Oct 15, 2015

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