After install 12.1 over 12.0 some mail folders appear empty in Thunderbird but data is still existent in fill system. Repair folders does not help.



Folder and Message Lists
6 years ago
6 years ago


(Reporter: agabriele, Unassigned)


12 Branch
Windows 7

Firefox Tracking Flags

(Not tracked)




6 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.168 Safari/535.19

Steps to reproduce:

Update 12.0 to 12.1

Actual results:

After install 12.1 over 12.0 some mail folders appear empty in Thunderbird but data is still existent in fill system (in mozmsgs folders). Repair folders does not help.

Expected results:

See above

Comment 1

6 years ago
.mozmsgs folders are for Spotlight integration. They're not where Thunderbird reads its messages from. If these are local folders, the messages are in a folder one level up in the hierarchy, generally with the same name as the mail folder in TB, unless there are special characters in the folder name. If these are IMAP folders, then the messages are on the server.

Comment 2

6 years ago
So the "folders" are un.typed flat files in, in my case, 

"D:\Thunderbird\Profiles\AllenG\Mail\Local Folders\Receipts.sbd"?

If so, some of them were replaced by empty files of the same name. Is there a way to rebuild from the mozmsgs files?

Comment 3

6 years ago
Receipts.sbd is a directory containing the sub-folders of the Receipts mail folder. There should be a file called Receipts at the same level, with no extension, that contains the actual messages. If it's missing/empty, you could recreate its contents from the mozmsgs files, by hand, with a text editor, but it would be fairly painful.

Do you have a virus checker installed? sometimes virus checkers see .0x releases and suddenly decide to empty out files that TB touches.

Comment 4

6 years ago
If this was UNIX I could AWK them. But I'm surprised that nobody has written a utility do do it on Windows. Oh well...  Thanks.

Comment 5

6 years ago
you can use unix tools on windows, e.g., cygwin.

You would want to concatenate all the files in mozmsgs into a single file, with an added line that starts with "From " before each message.  could you answers the questions from david ?

Comment 7

6 years ago
still needing ...

(In reply to Ludovic Hirlimann [:Usul] from comment #6)
>  could you answers the questions from david ? (both comment 3 and comment 5)
Last Resolved: 6 years ago
Resolution: --- → INCOMPLETE
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