Add-ons
Remove Duplicate Messages 0.1.14 Requires Restart
by Thorsten W. Schmidt
If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."
![[Warning]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=58a99cbb-667a0970)
Permissions
About this Add-on
If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by right clicking on a folder and choosing "Remove Duplicate Messages".
It allows you to configure what you want to compare (sender, messageid, subject, ...).
Changes for version 0.1.14
* Feature: New option to reverse the folder search. This enables keep the last found message instead of the first found one.
* Bugfix: As many asked for it I have switched the right with the middle click.
* Bugfix: In the Remove Duplicate Messages Dialog a MIME encoded subject and sender is not shown correct.
* Bugfix: Since Thunderbird 31 the Trash and Inbox folder are again recognized according to the setting to ignore or search them (occurred only sometimes).
* Bugfix: The number of found messages in the folder were sometimes wrong. It included e.g. virtual (search) folder.
Features (some for version 0.0.11):
* Also checks subfolders
* View found messages in main view
* Option to make manual changes to the messages to be deleted.
* Supported Languages: en-US, de-AT, de-CH, de-DE, de-LI, de-LU, es-ES, fr-FR, it-IT, ja-JP, nl-NL, pt-BR, ru-RU, ua-UA
* Easy to use and fast (1000 messages per second).
* Automatic delete (no dialog showing the duplicates)
* Prefer to keep the bigger, smaller, unread or first/last found Message.
Planned Changes:
* Undo delete/move messages to given folder
* Dialog with duplicate messages: Really delete messages, do not move to trash
It allows you to configure what you want to compare (sender, messageid, subject, ...).
Changes for version 0.1.14
* Feature: New option to reverse the folder search. This enables keep the last found message instead of the first found one.
* Bugfix: As many asked for it I have switched the right with the middle click.
* Bugfix: In the Remove Duplicate Messages Dialog a MIME encoded subject and sender is not shown correct.
* Bugfix: Since Thunderbird 31 the Trash and Inbox folder are again recognized according to the setting to ignore or search them (occurred only sometimes).
* Bugfix: The number of found messages in the folder were sometimes wrong. It included e.g. virtual (search) folder.
Features (some for version 0.0.11):
* Also checks subfolders
* View found messages in main view
* Option to make manual changes to the messages to be deleted.
* Supported Languages: en-US, de-AT, de-CH, de-DE, de-LI, de-LU, es-ES, fr-FR, it-IT, ja-JP, nl-NL, pt-BR, ru-RU, ua-UA
* Easy to use and fast (1000 messages per second).
* Automatic delete (no dialog showing the duplicates)
* Prefer to keep the bigger, smaller, unread or first/last found Message.
Planned Changes:
* Undo delete/move messages to given folder
* Dialog with duplicate messages: Really delete messages, do not move to trash
