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safely reducing the size of my Thunderbird folder

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The size of the Thunderbird folder on my Windows 7 PC [C:\Users\ronbar\AppData\Roaming\Thunderbird] increases daily. A side effect of this is to increase the size of my daily backup application. I have found if/after I update Thunderbird to its current version, the size of the Thunderbird folder is reduced.. Is there any way to safely reduce the size of my Thunderbird folder [e.g. by deleting files or folders in the Thunderbird folder] without needing to update Thunderbird? If yes, then please advise how to do that. Thank you, Ron [ronbar@gmail.com]

The size of the Thunderbird folder on my Windows 7 PC [C:\Users\ronbar\AppData\Roaming\Thunderbird] increases daily. A side effect of this is to increase the size of my daily backup application. I have found if/after I update Thunderbird to its current version, the size of the Thunderbird folder is reduced.. Is there any way to safely reduce the size of my Thunderbird folder [e.g. by deleting files or folders in the Thunderbird folder] without needing to update Thunderbird? If yes, then please advise how to do that. Thank you, Ron [ronbar@gmail.com]

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Periodically compacting folders usually helps. I also suggest viewing the profile with windows file explorer can detect if there are issues that reflect in increased profile size (such as duplicate account folders or NSTMP files that can be deleted).

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If you have gmail accounts in TB, unsubscribe All Mail and delete the associated mbox file.

All Mail section

If you're satisfied to store mail on the IMAP server, downloading headers only will lead to a significant storage saving.

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