Thunderbird Community Forum

Hello All, The opening email changed to a reader that works, but I'd prefer to use the "Classic Reader" by default. Searching the settings hasn't turned up anything that sounds right. Is there a behind-the-scenes file that I need to edit to resolve this issue?

Thunderbird shows email messages from the wrong account. The messages show properly in Yahoo website and on other computers using Thunderbird. Concurrent with this new issue, I now get message: Sending of the message failed. An error occurred while sending mail. The mail server responded: "Request failed: Mailbox unavailable. Please verify that your email address is correct in your account settings and try again."

I have verified the settings. Searching for help with Thunderbird, I see references to index files getting corrupt. However, I struggle with the correction procedures. When I right click on the bolded email address, "Properties" is not an option on the drop down menu. I cannot find a "Fix folders" button.

BTW, I did contribute December 17, 2025, it seems like a pretty good way to say "thank you!" Jim

Until recently, when I clicked on a link in Thunderbird, it was opened in Thunderbird. Now the link is opened on a wide-screen external monitor. I can't find the setting that was changed to make this difference.

"connection to server pop.mail.yahoo.com timed out" I have been getting this message in the activity manager for about a week now. When I click get messages, it says down loading message 1 of 1, but nothing happens.

How I could terminate the search when it has reached the end of the e-mail, and not just tell me "reached end of page, continued from top", a message that is so obscure and — if the window is quite narrow — will not even show.

Why I cannot select to get a pop-up note telling me I've reached the end of e-mail and ask if I would like to continue from top?

Recently (last three days) I have been getting many, many repeated popups with the heading "Login to server pop.mindspring.com failed" then below in popup options:

 RETRY      ENTER NEW PASSWORD     Cancel

I click RETRY After 1-3 of these in succession, the email arrives.

What's the problem?

Hello dear forum Here are the details: Account type: Microsoft Exchange (via OWL) Antivirus software and firewall used: Bitdefender I have the following problem: I copied the mbox files from the active account (profile) to Local Folders (as described in some forums), both with and without *.msf files (seems this makes no difference to the problem). Then I start Thunderbird, and all folders and subfolders appear in Local Folders. However, when I go into one of these copied folders or subfolders, it only displays a single email. The copied folder is the same size as the original, but no other emails are displayed, and this is repeated in every subfolder. I employed the repair function with no result. The import/export tool NG only copies half of the emails. The total is 4.25 GB. I can only copy the emails manually via copy/paste, but this is very error-prone and takes a very long time. Has anyone had experience copying mbox files and managed to do it successfully? I would be very grateful for any advice.

I changed my password and added a PIN to my gmail account and even thought I get the prompt and allow access it doesn't work and keeps asking for it again. Say that it's the wrong email or password. I did delete the old password in the stored passwords but it didn't help. Whether I use my password or the PIN when connecting to google and then chose to allow access to Thunderbird it just keeps asking to grant access again.

Hello Thunderbird. I have used the product for years across Win95, Win7. I have graphics trouble with Win10 after an update last year. Some times the email text has strange colours and the odd missing character. Opening an attachment always has funny yellow or green chunky background. Zoom +/- cures this. See attachments. The display driver is AMD Radeon graphics. 504MB used. Single screen. The processor is AMD A10-9700 Radeon R7, 10 Compute cores. 8GB RAM The machine is a standard out of the box HP Pavilion PC 570. ON thunderbird no extensions or themes. Hope you can help! Thanks Mike

My recollection is that prior to a recent automatic update to Thunderbird 140.12.1esr (64-bit) when I had a message composition window open, there were "SEND" button and possibly a "SEND LATER" button (to the left of the addressee and cc addresses in addition to the keyboard shortcuts (CTRL ENTER and CTRL SHIFT ENTER).

Following the update, there is no longer anything to the left of the addressee information. I have checked the toolbar menus, and there do not appear to be any button options. I can still send messages, but the lack of the buttons is a hindrance.

when I delete a folder which is showing in a light color, message states folder is undouble. I delete it but it re appears when I log back in. How can I permanently delete the folder?

I have been using thunderbird for years now with no issues at all. within the last month or so i started getting errors that my outgoing pw was incorrect. Then things seemed ok for a bit and as of today I just cant send anything at all. It will download mail just fine. But absolutely will not send.

  After checking all the settings, as shown below, and triple verifying everything is correct for the server and settings, ports etc.  I cant figure this out.  I have the exact same settings in my iphone mail and it downloads and sends mail just fine.  I can send an email from the phone and get it on my desktop through thunderbird, but i can not send anything back...  Both have had the same settings for years.  But the thunderbird app just decided it no longer wants to accept my outgoing password.  I have deleted the saved password within thunderbird and even after re entering it when the popup comes up, it just refuses to accept it.  I have a feeling this may have been one of the prior TB updates???
   Here are some images.  Can anyone help figure this out please... It's driving me bonkers

Dave T

I keep email tabs open if I am going to have to reference the email for some reason -- shipping product tracking emails, legal documents, threads of conversations that are ongoing. Every so often, Thunderbird decides to open with all of the tabs blank. It's unrecoverable, and I have to search each of the tabs I really needed to open up again after spending time X ing the blank ones.

I've been filing about this bug for years now. Mostly what I get is a bored moderator/mentor telling me why that isn't a priority, and how I should change my emailing behavior. I just lost track of several legal documents and am anticipating working for hours to get them back on top.

I'm very sick of it.

I have a particular need to periodically run junk mail filters on a folder in Local Folders that I know will contain mostly junk mail. According to a search engine, the command to do filtering on particular folders should come up in a junk mail tab when you right click on a folder and look under properties. When I right click on a folder, however, I never see a junk mail tab under properties or anywhere else. Where to I find the command to do junk mail filtering on a specific folder? Greatly appreciate any assistance.