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My Thunderbird crash whenever I tried to "save as" an email, save the attachment of an email, attach a file to an outgoing email.

Every time I did the mentioned, Thunderbird prompts the normal window of my laptop's folders, but it disappear in a second with the Thunderbird crash and quit.

This situation happened after I installed MS365 on my laptop.

I did try the below: 1. Reset attachment directory - mail.compose.attach.dir 2. Run in trouble shooting mode 3. Repair folder index 4. Clear cache

Anyone can help please?

Continuation of my prior post: https://support.mozilla.org/en-US/questions/1516342

Thunderbird has a routine problem with being unable to log into various mail servers. I have four accounts and they all seem to share this problem.

Most recent update: I've tested this in Windows Safe Mode, and the problem has not appeared. Since I can't do any useful work in Safe Mode, it's hard to give it a thorough test, but so far so good. Also, I have removed AVG antivirus because it was redundant. I have seen no improvement since it was removed.

Can this problem be resolved?

I'm on Win10. This morning I see that MSLOP has updated my desktop PC overnight. FF was open before the update and attempted to restart but couldn't restore pages. I told it to start a new session and the PC blue screened. This has happened before so after the PC restarted I shut it down. It blue screened a few times while also trying to restart FF. I shut it down with the power button. FF will not start with troubleshooting (shift while double clicking on FF icon). It crashes and I get the crash window. Latest crash detail is below. What next? Any help is much appreciated.

UPDATE: I went to windows settings, apps, and clicked on uninstall for FF. Immediately a message box, "Would you like to refresh instead?" popped up. Sure, why not? It thought for a while and updated. I logged in again and I am back to a functioning 147.0.3. I logged into my bitwarden extension and ublock origin is still there. No clue what happened earlier.

I used Thunderbird for many years, but starting in August 2025 it stopped working. It was getting an error in the smtp server, and I was unable to resolve that issue. When I try to login to Thunderbird now, it tries to send a message to pwrichcreek@twc.com, but that no longer exists. Thanks for your help.

I use Firefox on all of my computers and they all have a plus sign next to an open tab to open a new tab, but on this computer I have to right click on the 5tab bar to open a new tab - how can I get the plus sign to show for easy tab opening?

Hello, I just moved my email host from Microsoft to Bluehost and I am having trouble getting Thunderbird set up correctly. I can send and receive from Bluehost webmail, and I can receive in Thunderbird, but not send. I can reply successfully, but all sent mail from Thunderbird shows as sent but never arrives.

I am running Windows 10 and using Thunderbird 140.7.1esr

Any help would be great. Thank you!

John

After it updated to 147.0.3 it says that it is not compatibile with miniversion 147.0.2 nor with maxiversion 147.0.2. It suggests re installing (done) so can now at least access Mozilla again but still says at varying times not compatible etc. It is Windows 10 Any suggestions?

Thank you for the prompt reply and I'm sending it back to English I have a problem with the yahoo.mail account. While I log in normally when I'm on google on mozilla I can't log in and while it accepts the passwords. He gives me an answer: " Technical problem. Right now we can't connect you try some other time " I spoke with help YAHHO . I did everything prescribed but nothing. It took me to the solution of the subscription. Can you help? Thank you

'I have an additional bookmark toolbar along top of my screen... how to delete this bookmark bar. When I delete each of them it's all still there next time I open my firefox

We have our accounts on one computer and one dedicated email (using Thunderbird) which sends our invoices to our customers in PDF format as an attachment to an email. This stopped working a few days ago. The tech department of our accounts package supplied by Benchmak/Snip has looked at our system and the only thing they can suggest is that the emails are being blocked because may be Thunderbird thinks they are SPAM. We have been using this system for a couple of years now and has been fine. We can send and receive emails to/from this account, it's only the PDF attachments of invoices which isn't working. Can any one help please, thank you.

I have updated my firefox on W11 laptop to the latest version 147.0.3 (64-bit) but it cannot show any pictures from some, but not all, sites. Not from www.svt.se nor from www.yr.no But its ok from other sites, as www.tradera.com and www.kjell.com

It works fine using android firefox version 147.0.3

Any ideas, anyone?

Hi, Since the search open tabs function is part of the overflow button in a horizontal tab layout, when you switch to vertical tabs, you lose that search function. Is there a way to add it to my vertical tab layout? Thanks, Scott

Неожиданно пропал звук при использовании любых видеосервисов из Интернета.. При использовании других браузеров звук рабоет нормально. Как решить проблему с восстановлением звука?

I've suddenly lost sound while using any online video services. Sound works fine when using other browsers. How can I restore sound?

'εχω προβλημα με τον λογαριασμο yahoo.mail. Ενω εισερχομαι κανονικά οταν ειμαι στο google στο mozilla δεν μπορω να μπω και ενω δεχεται τους κωδικούς . Μου βγαζει ως απάντηση : " Τεχνικό προβλημα .Αυτή την στιγμή δεν μπορούμε να σας συνδεσουμε δοκιμαστε καποια άλλη στιγμή " Μλησα΄με βοηθεια YAHHO . Εκανα ολα τα προβλεπόμενα αλλά τίποτα . Με έβγαζε στην λύση της συνδρομής . Μήπως μπορείτε να βοηθησετε? Ευχαριστω

How to remove google search from the address bar on the right?????

I want to find my most visited websites in the address bar without any unnecessary actions!!!

Having used Outlook for over 20 years I have over 500 folders and thousands of emails. Is there a way to tell how many folders and emails I have? Can Thunderbird handle such a large import, maintain my folders and their hierarchy, and the maintain the emails stored in them?

I use Pop3 and have about 30 email accounts. Is that an issue? Does Thunderbird import all of the account settings?

Can I run both Thunderbird and Outlook simultaneously to determine if Thunderbird has imported everything and the migration is complete and fully functioning?

I read someone had a problem importing because their Outlook was 32 bit versus 64. How do I tell if mine is one or the other?

Do you know of any other import issues/problems?