Thunderbird コミュニティフォーラム

I have been using Thunderbird for many, many years now and been happy with it.

However last 6 months or so, it has been constantly crashing, often several times a day. Crash reports almost never get sent as it says there is a technical error.

Using a HP Spectre 360 (7 years old) with Windows 10. All windows updates have been applied, and constantly virus checked etc. No other programs giving me grief like Thunderbird which is the most important program. Before Thunderbird I used Eudora which was also great. Always regretted changing to Thunderbird.

I am now over it and Thunderbird. How do I transfer all my emails, attachments etc going back 10-12 years or so to a new email program.

Any suggestions regarding a better email client. Don't want to use Outlook. Have been looking at Proton Mail.

My trash account is auto-deleting messages over 30 days old. I WANT TO STOP THIS, I only want to delete what ***I*** want to delete. The setting on my trash folder is set to "don't delete any message", yet IT IS STILL DOING THIS!!!

I am thinking it may be that my messages are staying on the global server, and only shows what is saved there? In previous versions there was a setting for downloading and removing messages from the domain server, and it would store them on my HD. However, I cannot find any such setting now.

In any event I NEED to keep my old messages and do not want to create another folder just for that purpose. (Half the time I don't know what I need until the actual need arises, upon which time I can search for it and find it.) Can someone please help??

I recently switched over from mailbird to thunderbird. I'm adding all my accounts but for some reason one of them won't show in the left side panel. Anyone have any ideas how to fix this please

I've tried Troubleshooting Mode but it only recommends "Clear Startup Cache" and when I click it to reboot the program Thunderbird stills fails to load the Inbox file and Troubleshooting Mode again recommends the same "Clear Startup Cache" as a remedy. Not sure what to do to get Inbox file loaded in program. BTW the program does download new emails to the Inbox file but program is unable to load the file. During Thunderbird program restart the message at the bottom left of Thunderbird window is "Summarizing files for Inbox" which after 20 minutes program crashes ans asks for a reboot. Any corrective action recommendations is appreciated.

Thanks, Mike

Five people at our company have a representative email address that can receive emails from each other, and each person also has a personal email address that they set up to receive emails from.

Emails received at the representative email address are received in the inbox of each of the five people.

However, on four PCs, only two weeks' worth of emails received at the representative email address are saved.

Emails from two weeks ago are automatically deleted.

They are not even in the trash.

All emails received at personal email addresses, even those from two weeks ago, remain there.

Also, on one PC, all emails received at the representative email address and those from two weeks ago remain there.

All PCs were set up on the same day and I think they have the same settings, so I'm wondering why this is happening.

I would appreciate it if you could tell me a solution.

Thank you in advance.

About a month ago I began the process of upgrading from W10 to W11. In the process, several problems happened. One of the problems was with Firefox. After reading and trying many suggestions from the Mozilla site, as well as several other sites, and having no success, I posted my problem on this Mozilla support site and hope that there was someone who could help. There was. After several days of exchanging messages (suggestions, instructions and results - mostly about Profile), Firefox returned.

The other major problem is Thunderbird. I have downloaded a current version (128.5.2esr). I have run it twice and, each time, email was downloaded. So that part seems to be working. What doesn’t appear are the settings I have used and message folders I have created over several years. I suspect that the problems are Profile related.

Starting from Help in the Thunderbird menu, then Troubleshooting Information, then Application Basics, I see Profile Folder. On that line is a button labeled Open Folder followed by (Local Drive). I click Open Folder and File Explorer opens to a folder named ab3xaztm.default-esr. It shows that the folder contains 59 items, including 10 subfolders. All files and folders show a December date.

Following the path C:\Users\rsuth\AppData\Roaming\Thunderbird\Profiles\, in addition to ab3x…, there is another folder nlys3gkl.default that contains only 1 file, times.json.

Because of my earlier struggle – and eventual win – with the Firefox problem, I think that the Thunderbird problem might also be fixed in a similar way: Profile.

Slightly before the upgrading from W10 to W11, I made a copy of my Thunderbird folder. I think if I replace the currently active Thunderbird folder with the one I have saved, my Thunderbird problem may be over. However, I’m not certain that will happen and I’m not certain about the specific steps to take to make the replacement. (With my Firefox issue, there were a couple of small important steps I had to take to make it work, and those steps were explained to me by the person who helped me with my Firefox problem. So, after all these words, can someone point me in the direction to solve my Thunderbird problem?

Thanks for reading.

I just migrated my Thunderbird from my old MacBook to my new Mac Mini. I tried following the official instructions and the instructions in the linked thread, but I experienced the same problem the other users did— that Thunderbird, on the new Mac, would act as if it was setting up a new account, even after replacing the entire Thunderbird folder in the user's Library folder. With some investigation, I was able to detect how to fix the migration, though I can't tell you why Thunderbird behaves this way.

Here are the instructions I followed: [https://support.mozilla.org/en-US/que.../1397228]

The process of copying the old Thunderbird is correctly described. However, there is still some funny business on the receiving end.

What I determined was that Thunderbird, for whatever reason, wasn't reading the information in the profiles.ini and installs.ini in a way that launched the migrated installation. Instead, it still created a new installation and a new profile and overlaid those on top of the information in the migrated files, making the newly created profile the default and ignoring the migrated profile when launching.

In order to correct this, I needed to manually edit the profiles.ini and installs.ini file (in a simple text editor) to use the NEW installation but substituting in my MIGRATED profile for the newly created one.

I'm sorry I didn't take screen shots before deleting the files, but the important thing is to edit both files so the both are using the NEWLY CREATED installation ID but that both files only reference the OLD profile ID (deleting all other mentions of the newly created profile and deleting mentions of the old installation ID. This is just a copy/paste operation.

I've attached screenshots of mockups of what my new profiles.ini and installs.ini look like. The important thing is that both have the NEWLY CREATED installation ID (not the one copied from the old Mac) with the OLD profile ID.

Is it possible to have the number of unread emails in the Inbox show on the Thunderbird icon in the Windows 10 Taskbar? This would be very convenient and avoids the need to keep opening up TB to check. I recently tried eM Client, which had this feature, but, returned to TB to avoid other dislikes I found in eM. Thanks in anticipation Robs

I wrote an email then clicked on "Attach" (same happens if I click "Add attachment"), I got an error message that stated that a completely unrelated directory did not exist. There was no way to get round this, so I could not add the attachment. I eventually worked out that the directory had been used for an attachment on a previous unrelated email. That directory had since been deleted. I created another directory of the same name and the attachment process worked. When attaching, Thunderbird seems to default to the most recently used directory, if it no longer exists the attachment process fails and there is no way round it.

I'm trying to transfer the Profile folder from my current laptop to my new one. I followed the directions here: https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer but must've made a mistake because none of my many Local folders have populated Thunderbird in the new laptop. Also, the GB size, number of files and number of folders show to be very different on the new laptop vs. the current one.

I'm inclined to just start over but have a question. Can I simply delete the contents of the "Thunderbird" folder under "Roaming" in my new laptop and try again to paste into it? Or are there some items in that folder that were inserted when I first downloaded TB into my new laptop so that doing a complete deletion would remove those and they wouldn't be replaced when I try pasting again? If so, how do I get around that?

Thanks very much for your help.

I am using Thunderbird 128.5.2esr, Win 11. My screen resolution is 1600 x 900, when using for example Message filters I cannot see all all of the image to allow me to accept what I have done. The buttons are off screen and cannot be accessed. If I change to 1920 x 1080 everything is accessible.

Any suggestions other than change my screen resolution.

I had Thunderbird and switched to Outlook when I purchased Office. I liked Thunderbird better so I switched back. I exported my Outlook calendar and imported it to Thunderbird. The calendar works, no problem.

The problem is that when I open Thunderbird and select the calendar for the first time Thunderbird hangs. If I check the message indicates that Thunderbird is busy. After a period of time everything works. The only time this occurs is when I start Thunderbird and select the calendar for the first time. Can you tell me why?

If it makes any difference when I imported the calendar I did not realize how Thunderbird worked and I imported it creating a new calendar with the name of the imported file. I had a Home calendar with nothing in it and my imported calendar. I decided to export the calendar that was created during the import. I then imported that file to the Home calendar and deleted the original imported calendar.

I recently tried moving a backed up Thunderbird profile to a new computer, and everything transferred over perfectly, except that when the app tries to connect to my Outlook account, the OAuth window that appears is completely blank, with nothing to click or input (just a grey background), and so I essentially can't use the account.

I have used the same backup on another computer successfully (the Outlook OAuth window appeared correctly), and my other Gmail account that is part of the backup and also requires OAuth works fine on this new computer. I've also tried starting Thunderbird without the backed up profile, as if I was just connecting my Outlook account from scratch, and the window appears correctly there too, but I'd really rather not have to reconfigure everything from scratch...

I'm guessing something in my backup doesn't play well with OAuth settings on this computer, any idea where I should look? Thanks for any input!

I have a long-standing problem with items in my Mozilla calendar sometimes disappearing after I open my Outlook calendar on my cell phone. The items continue to show in the Outlook calendar on my phone and in Google Calendar online, both of which are connected to my Mozilla calendar. Any ideas or suggestions? Thanks in advance for the help!

My wife decided to add our son to our You Tube TV. She is not the greatest with computer. I have been unable to access my Thunderbird emails since Saturday. When I sign in I am asked to enter my email address and I get a 404 error message. I'll attach the messages I have received. Have to talk on phone if that is OK.

Currently using Thunderbird 128.5.2esr (64bit) on Win10, I can no longer print the imported holiday events. They show on my screen, but will not print. This has just recently come up (within the last month). I have always been able to print all events up till now. I have checked the settings and nothing else has changed that I can find.

I have lost all e-mails from 2024 except for the last 2 days. when I tried to retrieve them from the 2024 archives they disappeared? I have lost them on my phone and my computer, but they are still on my husbands phone. What on earth happened and how do I fix it and how do I retrieve the e-mails. This is a business and all e-mails are very important.