This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Junk folder gone

  • 6 replies
  • 1 has this problem
  • 25 views
  • Last reply by Matt

more options

I accidentally deleted the Junk email folder. It is now in the Trash folder. I cannot drag it out, back to the main account folder. How do I get it back?

I accidentally deleted the Junk email folder. It is now in the Trash folder. I cannot drag it out, back to the main account folder. How do I get it back?

All Replies (6)

more options

Pmorgan25 We have read your message. We try to help you.



Hello there,can you see the maps or map that is in your trashcan? Can you put out the files?or any file?out of the map?not the map itself. Copy them to a another extern map? And delete the junkmail map that causes the problems of being stuck in the trashcan? Do not shrink or compromise the map.


Greetings Firefox volunteer.

Modified by День сумо

more options

Hello there again.

Try to locate the msf.file Locate the .msf files that correspond to the folders you want to rebuild and move them to the trash.


Make sure Mozilla Thunderbird is not running.

Open your Mozilla Thunderbird profile directory on your computer and select the desired account's data folder.

Locate the .msf files that correspond to the folders you want to rebuild and move them to the trash.

Start Thunderbird. The email client will rebuild the removed .msf index files, thus repairing your folders.

Is this possible to do?


Read this one to. The other way to find your msf.files(trash).

https://www.mboxtooutlook.org/blog/how-to-open-&-locate-msf-files-in-thunderbird.html (Scanned)

http://kb.mozillazine.org/Profile_folder_-_Thunderbird

Try this and your junkfolder will be rebuild and putted on the original place again.


Greetings Firefox volunteer.

Modified by День сумо

more options

Thank you for your instructions but after deleting the .msf files in my Thunderbird profile folder, the junk folder did not come back.

more options

Is it still showing in the trash folder? (a screen shot of what you are seeing would be helpful.) Is the account IMAP? (It probably is but this is important to confirm as understanding the issue correctly relies on the account type.)

more options

Matt, it is no longer showing in the trash folder and yes it is an IMAP account. Attached is a screenshot of the subfolders under the main account.

more options

More importantly is there a just (or similarly named) folder if you right click and select subscribe on the account name.

Who is the mail provider? (mainly is o365 involved but the who is relevant)