Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Email folder size on TB shows 3.8GB. On HDD location it is 13.63GB

  • 3 replies
  • 0 have this problem
  • 102 views
  • Last reply by david

Karunakaran Menon
Karunakaran Menon

an year ago on 11/25/24, I have raised this same issue https://support.mozilla.org/en-US/questions/1475852#question-reply Another user https://support.mozilla.org/en-US/user/davidsk/ replied that it is a bug ! I still have the same problem !!

My hard disk is again almost full. And it is primarily Thunderbird bloated folders.

In the MAC hard-disk, size of the many of the folders stored in local directory, are much larger that the size on TB.

For reference, On TB, "_cc folder" is 2.0 GB On Mac Finder, "_cc folder" is 13.63 GB

I have right-click the folder and press "compact". The folder on TB reduces in size. But, the folder on the Mac harddrive does not reduce in size.

Thunderbird 115.4.1 (64-bit) on macOS 26.1 Server Type : POP Mail Server

Appreciate help to get this fixed.

Thanks Attached screenshots

an year ago on 11/25/24, I have raised this same issue https://support.mozilla.org/en-US/questions/1475852#question-reply Another user https://support.mozilla.org/en-US/user/davidsk/ replied that it is a bug ! I still have the same problem !! My hard disk is again almost full. And it is primarily Thunderbird bloated folders. In the MAC hard-disk, size of the many of the folders stored in local directory, are much larger that the size on TB. For reference, On TB, "_cc folder" is 2.0 GB On Mac Finder, "_cc folder" is 13.63 GB I have right-click the folder and press "compact". The folder on TB reduces in size. But, the folder on the Mac harddrive does not reduce in size. Thunderbird 115.4.1 (64-bit) on macOS 26.1 Server Type : POP Mail Server Appreciate help to get this fixed. Thanks Attached screenshots
Attached screenshots

Chosen solution

Did this and it has now solved the storage space problem

1) On TB, "_cc folder" -> archived all emails. And deleted the folder. 2) On Mac Finder, "_cc folder" -> deleted the folder

This has solve the issue of the storage spaces.

The emails are all safe in the archive.

Thanks

Read this answer in context 👍 0

All Replies (3)

david
david
  • Top 10 Contributor

It may help to do a screenshot of the SBD folder's contents. That would have more detail. Thank you.

Karunakaran Menon
Karunakaran Menon Question owner

Chosen Solution

Did this and it has now solved the storage space problem

1) On TB, "_cc folder" -> archived all emails. And deleted the folder. 2) On Mac Finder, "_cc folder" -> deleted the folder

This has solve the issue of the storage spaces.

The emails are all safe in the archive.

Thanks

david
david
  • Top 10 Contributor

Thanks for the feedback. :)

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.