Thunderbird Community Forum

I searched throughout Thunderbird's settings to see where I could enlarge the font in the main screen where the list of emails are. I can't even Ctrl+ in this screen to enlarge it! Help! Eye Strains... Please see the paint screenprint.jpg. for illustration. Thank you! Marla

I just can't get Thunderbird to work. Will not send or receive emails. I had chat gpt help, still nothing. I tried last year when I had windows 10, still didn't work.

Guy

Name Thunderbird Version 152.0 Build ID 20260612011159

[edited email from public] @gmail.com

I am trying to migrate my Thunderbird account from PC Windows 10 to a new PC Windows 11. The installation selects my provider and settings correctly but when I try and sign in, I get the above message. I have not the first idea where to start there. any help would be appreciated. I still have a copy on a windows 11 laptop that I can use to enter settings, but I can't get that far with the installation. Any help would be greatly appreciated.

The majority of emails going to my inbox are being automatically moved to trash when I exit. I want to return to all emails going to my inbox and I manually make the determination if its trash or not

I use Thunderbird for three accounts; the business I own, my other work, and my personal account. Everything was working smoothly until we migrated the business I own from Namecheap to Zoho and added it back to Thunderbird. I have two accounts on Zoho, a role-based group account (info@mydomain) and a user account (myname@mydomain). It still shows up as three accounts, on my left folder pane, with those two emails set up as identities within a single account. Today I have been trying to archive emails and it is not working across any of my accounts, not my other work nor my personal account. The archive button simply does nothing. I tried changing the settings in Copies and Folders- everything is set up right. I looked in the Config editor and saw that archive_enabled and three other configurations only existed for one of the four identities and were completely missing (not just switched to false) for the others. I added those configurations back, but nothing is working. What happened? And how do I fix it?

Returned from a 1-month trip and my Windows11 would load - repair didn't fix it, so I had to reload Windows.

Now I'm unable to right-click on a photo and send it via my Thunderbird email. When I right-click on 'Send to', there's no email option showing.

Thanks in advance,

Scott

I can no longer download my email from the server to my Thunderbird email client since I removed the specifics for the server with the password. I need to add it back but I don't know how. Is there a file I can edit?

Dear Support,

we can not log-in with our office 365 account. We need to log-in with "Exchange Add-on erforderlich", but we receive this error message.

I attached you some screenshots. We do not understand why this error appears.

When we log-in with option "Exchange" then it works but we need the other option because we need to have the sub-folders.

Please help us.

Best regards, Andreas

The export says to hold over pix. Computer says files are exported and continue on phone but phone is still stuck on importing. I don't know where the ap window is but I downloaded the latest version

I have four different email accounts. A week ago, all incoming and outgoing traffic suddenly stopped . Webmail works normally. I have no viruses, trojans, etc. I deleted one of the accounts and tried reinstalling it. I can't do it anymore. The system keeps responding: "Unable to authenticate to the server. Username or password configuration may be incorrect." But they are all abolutely correct. I don't know what else to do. Any clue? Thanks

I just installed ESR 140, coming from 115 (Win7). A change I find very bothersome is that when I now search the calendar (All Events) the results return a separate entry for each occurrence of a recurring event instead of just the one definition of the recurring event. How do I make the search behave as it did previously? I have dozens of recurring events that recur weekly and have been using Thunderbird for over a decade... I am staring at hundreds of duplicate search results which also temporarily freezes the app while they load in. This is not a functional design.

Back in April I was hacked, on my 2012 Acer Desktop (WIndows 10) ,with a (RAT) remote access trojan, and the hacker screwed up my computer & changed my passwords. (Messed up my life bigtime--Creditcards, bank account, etc. I had Thunderbird and don't want to lose my e-mails. I finally got another laptop computer(Windows 11) & want to use Thunderbird there also. with same e-mail & password Just today I finally was able to get a new password for my ISP- windstream.net. How do I go about getting my password changed as I am unsure of what the hacker did. I really don't want to start over from scratch. My e-mail address is labman1@windstream.net. I don't really want to start a whole new account or entity. What do I do to go about changing the password? HELP !!!!

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AI tells me I can't just drag my Gmail.com (IMAP) from local Folders to the internet-connected folders section, which contains my Verizon.com account hosted by AOL. How can move my Gmail (IMAP) account safely?

roland.multhaupt

18. Juni 2026, 07:13 GMT-6

Firebird is so slow now, that I can rarely receive the code that you send me. Have to take annother programm for that. Freezes even when trying to mark a mail or erasing it. WIN 11. The programm is working well at my wifes laptop also WIN 11. 2 month ago it worked fast and fine. Working in Troubleshooting mode does not show any spam ordner like before and it does not run better. I also downloaded the last version. No change! I would like to uninstall the programm but did not dare due to perhaps loose all my mails. Could you help me please? Thank you!

I recently updated windows and since then I have not been able to login to my emails and or recover contacts or calendar on thunderbird. I am able to login to my primary email but I have no contacts and am not able to login to my other 2 email accounts.