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We cant download emails in thunderbird any version with mailboxes on exchange online O365.

SMTP works fine. Receiving mails is not working and it gives Retr 21 error.

Cox just transferred all customers' email systems to Yahoo. After my e-mails were transferred to Yahoo, Yahoo tried to help me when I was getting error messages saying that log in to server smtp.mail.yahoo.com with my user name (my e-mail address) failed. The Yahoo rep told me that my problem is that "Whenever the generated app password from Yahoo is entered, sending emails works, but it only stays like that until the computer gets restarted. The app password is not saved." The rep told me that many Thunderbird users who had their email systems transferred to Yahoo are having the same problem. Has anyone had this problem and been able to resolve this problem? Thank you! Cyd

Hi, my pc (I think the ssd/os) just quit on me, is there a way for me to build a new system (reformat) onto a new drive and either using the old drive (if accessable) or "the cloud" recover all my old tabs from that pc onto the new one? I had a list of tabs saved, but it hasn't been updated in a couple months (yes, I have a lot and can't remember them all).

I'm hopeing it's as simple as putting the old drive as a secondary drive and copying the "appdata" folder or something to the new pc.

System: windows 7 (yeah, I don't want to give it up) on evga mobo with i7-x990 cpu and maxed out ram. Samsung ssd (2.5"). Most all "personal data" is stored and accessed from my nas, just don't know how to do that for the tab hostory.

I've attached images of the problem I'm experiencing. Its like pixels are breaking/turning negative colors and it effects anything visible. I don't really understand what's causing this issue. It doesn't effect any other program on my computer/outside the firefox window, so I assume its a firefox issue. I've uninstalled/reinstalled the program with the refresh to hopefully fix the issue but it didn't work.

After update Thunderbird to version 128.0esr-3 (Ubuntu, snap) RSS channels that require authentication are not downloaded. There is info about access denying.

In previous versions there was a pop-up asking for login and password (no need to write, just click button) after every restart od Thunderbird. Now there is no pop-up, only info about denied access.

My laptop using Windows7, the processor died. The hard drive is ok. I am now using Windows10 in a newer laptop. I don't know how to access all the data from the other. I don't think I did a back up. I've got both personal & business. Is there a way to retrieve my old Thunderbird info? [And just so you know, I learned my lesson about not backing up.] And thank you for any help!

Since 128.0 was installed outlook.office.com/mail has stopped working. (Windows 11)

My mail account has numerous shared groups. However these now fail to load with a messgae "Cannot load folders for "xxxxxxxxx" Decoding failed.

Additionally, while I can see new mails in the list (under focused and Other), the previews are all blank.

I do not get this error in Edge or Chrome in Windows.

Hello,

I have no problem playing videos from any site except for abc.com. For months now these videos just don't play. I've tried removing my ad blockers, cleared the cache & cookies. Still nothing. Until recently this was not a problem. Now I have to resort to using a different browser to watch these videos. It's only when I use FF that I have this problem.

Please help!

Thanks, Andre'a

Dear Mr/Ms, Can you give me one rational answer why is missing icon "Compose new message" in new version of thunderbird? The purpose of use of email app is to sent and receive emails, isn't it? Im very dissaaponted by this move. Did you ask any user when plain to improve app? My advice is to ask people who use thunderbird app.

I got an extension called BTRoblox and after installing it made most icons black and white. I uninstalled it and nothing changed, I tried changing my theme, restarting the browser, going in incognito tabs, and nothing has worked. I can't figure out for the life of me what this extension did to break Firefox.

I have Thunderbird 128 installed and just tried to get my gmail account set up. Everytime I try to add it, the Oauth window comes up, I log into Google, and then get a "malformed url" error and the oauth fails.

Anyone else have this problem with 128? Is there a workaround?

For about two months, video quality has been persistently low for me on Youtube. Quality options are limited to 360p and I am unable to change it. Additionally, I am unable to play video on other platforms such as Vimeo, Pinterest and other streaming sites. Sites return errors such as 'Player is unable to play video at this time' or error code 102630. I have refreshed my cache and reinstalled Firefox and neither have resolved the issue. Notably, this issue does not occur on other browsers such as Chrome or Microsoft Edge. As far as I know my drivers are up to date and the Windows Media Feature Pack is installed, although it shouldn't be an issue seeing as sites work on other browsers. The issue also persists in troubleshooting mode. I've gone through the console and included images of some interesting errors that might be of use, although I don't have the technical knowledge to know what they mean. Please inform me if there is any other information I can provide that would help. Thank you!

So Microsoft sent one of those "take action or lose access to your account (btw, Thunderbird sux, use Outlook instead, nudge, nudge, wink, wink)" e-mails to me. So I've beeen jumping through an unholy amount of hoops in order to find out what I'm supposed to do in order to fix whatever it is that needs fixing. I seem to have found the answer here: https://support.microsoft.com/en-us/office/modern-authentication-methods-now-needed-to-continue-syncing-outlook-email-in-non-microsoft-email-apps-c5d65390-9676-4763-b41f-d7986499a90d. They were even "kind" enough to include specific instructions for Thunderbird. I did step 1 successfully, but unfortunately I'm stuck at step 2 because the Authetication method selector won't offer OAuth2 at all, as you can see here: https://i.postimg.cc/mrSstFtt/Captura.png.

1. What am I doing wrong? 2. How can I set my outgoing mail server to use OAuth2, then? 3. Do I need to anyway?

Hope you can give me a hand, so far this has been way more trouble than it needed to be. And after I sort it out I still need to do the same for K-9 on my phone -_-'.

Hello, Is it safe to delete this trash file? C:\Users\(user)\AppData\Roaming\Thunderbird\Profiles\8man8wy0.default\Mail\pop.secureserver-1.net\trash//

It is simply named 'trash' and has no file type (file type just says 'file'), and is for a mail server I don't use anymore (pop.sercureserver). It also says it hasn't been modified in four years.

The reason I want to delete it is because Kaspersky antivirus detected four dangerous objects there that it can't resolve or delete and won't let me quarantine. Strangely, they're all from 2016.

I already tried manually looking for the emails in Thunderbird, permanently deleted trash emails, and compacted folders, but even after that and restarting the computer several times Kaspersky still finds them. Unfortunately, because of the ban on Kaspersky in the USA, I can't post to their message boards to ask for help.

So, is it safe to delete the file 'trash?' And would I need to delete Trash.msf and/or the folder Trash.sbd also?

Any assistance would be much appreciated, thank you.

Microsoft has sent instructions to change from Normal Password to OAuth2 in my Thunderbird settings. I have successfully done this in the Account Server Settings but when I go to the Outgoing Server settings the option to choose OAuth2 instead of Normal Password does not appear. HELP!

Can no longer export messages as single text file, nor export messages AND attachments. NG Export worked beautifully, but no longer does. The only options for NG Export are now to export the profile, and for Thunderbird itself copy and past Emails ONLY as emls. Help!