Thunderbird Community Forum

I have been using Thunderbird for years. Until now, I deleted messages from my folders and trash, and I saw that they disappeared, but I checked that all these messages were still in the folder. When I deleted them from there, they were still visible after a second. I have almost 70,000 messages, and I want to delete a large part of them efficiently. My email is on Gmail, what should I do?

I’m on a Mac using the Sequoia OS (not ready to update yet to Tahoe). I recently left Microsoft Outlook, my e-mail client for years, because of all the crashing and when I would update, all the stored e-mails disappeared. I am now using Apple Mail and the export function doesn’t work most of the time. Apple tech support did some things that told me they are automatic backups, but I can’t see them.

I use Thunderbird on an old PC and would like to also use it on my Mac. However, when attempting to import, it starts and finishes in about one second, importing nothing. The files are in .mbox format. What am I doing wrong trying to import these files?

I have purchased a new computer trying to set up a e male account so I can shut down the other computer. its not working it says wrong password of user name what can I do

As per my title, where can I find a themes toolbar background image and change it? I have tried looking for manifest.json and header.png files for the theme but I can't find it.

Or is there a way I can override it using CSS somewhere?

Windows 11

Cheers

GW

For some reason after the last update I have been getting multiple inbox.conf(*) folders getting created (see image). I have not found a way to remove these folders. Is this a bug or a setting issue?

I have installed Thunderbird on a new computer and copied my profile from the old computer as per instructions on the Mozilla site. However on the install on the new computer the LOCAL FOLDERS, sub folders which I use as archive storage do not contain the messages as per the my old computer. The sub folders are named correctly.

I have attached photos of the sub folders from the old computer showing data in the sub folder and also the new computer showing no data.

Please advise how to retrieve the data for the new computer.

To be clear, I seriously doubt the problems I am encountering are TB's fault! The problems may be my fault since I've grown older, I've tended (believed) using new versions of software present my mind a BIGGER challenge than using the older software/version I have been successfully using? I'm still using Version115.10.1

After our ISP chose to start using Zimbra Oct. 7, 2025 and their tech support could not assist me in getting TB working the had me remove POP3 settings for TB and change to IMAP with their software.

FINALLY someone helped me get TB working with IMAP. For 3 days grrr. Now the ISP says I need to use their web mail, Zimbra.

So might downloading the current TB version and somehow get the In box, all the folder contnets etc. over - into the new TB help?

I was going to backup everything tonight, now I have little to NO hope, without help!

THANKS & remain WELL plus be SAFE!

Robin

Hello, I received an email from Spectrum (.TWC) that I needed to change my password by Nov. 11th. I did change it last evening. Now today I cannot receive my email via Mozilla Thunderbird, I receive the pop up to Enter the Password when I open it. Can you help me with this. Thank you for your time and efforts.

I have contacted support earlier and received a reply through Spectrum webmail giving me a ticket ID 344188 and this is the first that I have had time to resume working on the problem. My email address with Thunderbird is [edited from public] @columbus.rr.com. Besides the Spectrum webmail I also have access to Gmail with the address: [edited from public] @gmail.com Other contact means are: phone [edited phone# from public] and postal mail: [edited mailing address from public community support forum]

My Thunderbird program stopped sending on about 11/3 and the last incoming mail was on 11/5/25. The folders to save emails have also gotten rearranged and some missing. I hope you can help me with Thunderbird, which I have used for many years and have donated to it an Mozella regularly for the past few years. Respectfully, Richard E. Hartle

On the 20, of October I was forced to re install Windows 10. Kept my data but I had to re install all my apps. With Thunderbird I follow the same procedure I used with Firefox: After installation I copied the profile folder from my backup and replaced the new one. That worked out well. With Thunderbird, I followed the same procedure, all my emails where there but not my local folders. I am attaching several snapshots to illustrate my steps. Image 1 "local folders now" Image 2 "Profile Folder". (why there are 2 sub-folders)? Image 3 "Mail in the profile folder" Image 4 " List of folders in my Local Folders" The are there, how do I get them back on Thunderbird in the correct place "Local Folders"? Thank you for your help again. Regards Ilio Pieroni

Today when I logged onto my MacBook I found that my Thunderbird desktop application is corrupt. When I attempt to open it states "You can’t open the application “Thunderbird” because it may be damaged or incomplete." Screen shots included.

I last used TB with no issues on Oct 27th.

I have over 20 years of TB emails that I do not want to loose.

I have backed up my profiles folders (there are 3) from >Go>Library>Thunderbird>Profiles

My first question is that I thought there were multiple locations of profiles. One for local. But I can only find the above profile.

My second question is how to I go about re-installing? Should I remove the corrupt application first and and then reinstall? What steps should I take?

Thank you!

why can't I ask the actual writers of the program for help, instead of the community? The community is not in charge of writing this program, nor the cause of its problems. The programmers are!

I deleted a profile from my Thunderbird account, but I keep getting a popup login screen. I can no longer access this profile. HOW can I get rid of this popup screen? It continues to popup every few minutes! Need it to stop!!