Thunderbird Support Forum

Hi everyone,

I'm having trouble with my Thunderbird app (version 115.11.1) on macOS. I'm trying to add my Google accounts, but after I attempt to connect them, I receive the following warning message: "Unable to log in at server. Probably wrong configuration, username or password."

I've checked the configuration multiple times to ensure it's correct. Here are the settings I'm using for Gmail:

Incoming Server (IMAP): Server Name: imap.gmail.com Port: 993 Connection Security: SSL/TLS Authentication Method: OAuth2 Username: [my email address]

Outgoing Server (SMTP): Server Name: smtp.gmail.com Port: 465 Connection Security: SSL/TLS Authentication Method: OAuth2 Username: [my email address]

I've also emptied all saved passwords and allowed cookies from sites without any exceptions. Is the version of Thunderbird I have still incompatible with Gmail? Or is there another issue that I might be missing?

Thanks for your help!

Every-time I open up Thunderbird e-mail Version 115.11.1 (64-bit) to access my Outlook E-mail Account, it pops open a box wanting me to enter my password! :-( I can enter it and mark that box to use "Password Manager", but it doesn't matter if I check that box or not, because every-time I reopen Thunderbird it asks me for that password again! :-( This problem just started in the last few weeks...... Once I enter my password, I can receive and send e-mails just fine, but when I close Thunderbird and reopen it, that popup box reappears again, where I must enter my password. (see picture I attached) If I just X out of it, I can't access my e-mail at all, as that box asking for a password, pops back open again asking me for my password AGAIN! Which by the way is 100% correct, as I can access my e-mail through Firefox, Google Chrome or Edge Browser just fine. I have used Thunderbird for years and have NEVER encountered this problem before, I hope you have a fix! I am running Windows 10 Pro Version 22H2. Thanks in advance! Keith

For months I was experiencing the problem of "Thunderbird not responding" occasionally. It was a short duration issue (a few seconds to a minute). I reinstalled Thunderbird several times without success. I read almost every comment available online about this problem and I tried many ideas and recommendations I found without success. Most recently the problem became so serious that it was not a nuisance any longer. It was nearly impossble to work waiting for minutes to open an email or to continue typing while preparing a message and being interrupted by the problem I am describing. I ran Thunderbird in safe mode and determined that none of the add-ons is causing the problem. I turned the firewall OFF and determined that firewall was not causing the problem. I then decided to run Thunderbird in Offline mode and found that the program works normally. Then while in Offline mode I decided to download more messages and the program asked me if I wanted to switch to the Online mode. I said yes. New emails were downloaded and without going back to the Offline mode I was able to work normally without any occurrence of the "Thunderbird not responding" problem. I have been using this workaround for several days now. I download a number of eamails. I try working in Online mode and I cannot do it. I switch to Offline and work fine. I switch back to Online mode and I don't see the problem any longer for the whole day. Do you have any idea as to the origin of my proble? I am running Thunderbird 115.10.2 64 bit on Windows 11. I had the problem originally using Lenovo T490s and more recenlt Lenovo X1 Yoga

Not so newbee here. Very long career in S/W, but 20 years as a Luddite so now trying to catch up.

3 gmail accs - all good. 3 hotkey accs - receive ok, but cannot send - broken recently. These old legacy accs were taken over by iPrimus but are still visible/SameSameBroken at hotkey webmail.

1 of the 3 hotkey is set to Default. It is MORE broken than the other 2. How do I remove this Default? I will choose a gmail account to be the Default. But how exactly do i unDefault the hotkey acc.

No, I don't need nor want, to use iPrimus pop/smtp settings. Yes, the broken hotkey smtp issue is probably no biggy - just work in hand.

Thanks for any assistance... I see this thread is very busy. ps, I remain committed to the goals of Open (free) Software. If only the worldview was as committed, how good it would be for everyone!

As described in [question] I am unable to install addons in Thunderbird: when attempting to install an addon, either via the in-app browser or via a file, a pop-up window appears for which "Add" and "Cancel" buttons do nothing (there is no way to move or remove the window without killing the process).

I am opening this question as this problem still persists over a year and many versions later.

Thunderbird V. 115.11.1-1 on 6.9.3-arch1-1 with Sway WM

Is there a way to schedule a time (daily or weekly) during which Thunderbird doesn't check for new mail?

I have several mail accounts, some for work, some private. I want Thunderbird checking for new mail on my work accounts during my work hours, and pause checking when I get off work. I don't want Thunderbird to check my private mail while I'm at work (or specifically, up until an hour before the end of my workday).

Eg. I'd like to "tell" Thunderbird to check my work account monday to friday from 8am to 5pm, and my private account every workday from 4pm to 8am and every weekend all day. Ideally, clicking on "get new mail" would only fetch mail for the currently unpaused accounts.

I don't want to have to manually pause checking for messages for each account several times a day.

The "check for new messages every ___ minutes" doesn't help.

Disabling notifications isn't a solution - I need the messages (especially work messages) not to be downloaded from the server (or receive notification that there's mail waiting). I'm looking to "disconnect" from work while keeping up to speed with my private communications.

I have just completely reinstalled Thunderbird v115.11.1 after uninstalling the previous installation. There are two problems, possibly linked to a faulty or missing setting.

Remote images will not display, even after specifically enabling remote images for each email, or after turning on "display remote content" as a default. Also it claims there is a potential security threat with Thunderbird's own web addresses: "live.thunderbird.net." and "addons.thunderbird.net.".

I have attached screen-shots of the error messages, and of a thunderbird email that fails to display its images.

Good afternoon I have 2 accounts in Thunderbird - a gmail and a Yahoo. Both were running great from the time I set up Thunderbird about 2 weeks ago until yesterday when the gmail account stopped sending and receiving. The Yahoo account is still fine. I have not received a message in Thunderbird in my gmail account since, although I have logged in on the web and confirmed that there are incoming messages in my account.

When I attempt to send a message from the gmail account I receive an error message - "Add Security Exception". If I click "View" nothing happens. If I click "Get Certificate" the section "Unknown Identity" changes to "No Information Available". However, when I cancelled the message I noticed a new error message appeared - "Send Error Message" and when I returned to the main Thunderbird screen I noticed a new tab appeared "Certificate for smtp.gmail.com".

As you can imagine, I seem to be getting nowhere with this and as I am only an intermediate user with computers I don't know where to go next. Subsequently, I sincerely hope that someone out there is able to help me. Any assistance would be very much appreciated.

The following are my Thunderbird settings for the gmail account :- Incoming Server Server type : IMAP Mail Server Server name : imap.gmail.com Port : 993 User name : [myname]@gmail.com Connection security : SSL/TLS Authentication method : OAuth2

Outgoing server Description : Google Mail Server name : smtp.gmail.com Port : 465 Connection security : SSL/TLS Authentication method : OAuth2 User name : [myname]@gmail.com

A copy of the error messages as well as the Certificate are attached.

My wife & I have the same PCs running Windows 10 & Thunderbird 115.11.0 (32bit).

We have a hosted web-site that also supports email, and we each have an email account (eg neddy@goon.com.au & minnie@goon.com.au). I've checked that both our POP server configurations are identical but despite that about once a week minnie@goon.com.au receives a warning to add security exception but neddy doesn't. This started happening two weeks ago after a years error free running.

The host has checked that goon.com.au has a valid SSL certificate, so what could be causing the discrepancy and how do I set about fixing it please?

I always use Thunderbird online so no need for offline storage. When I installed Thunderbird, online storage was set on for all accounts. I've since turned this off, but would like to recover the disk space. What Windows folders can I delete? Thanks.

I am using Thunderbird in Windows 11 on an Intel NUC 12 computer. I am using Thunderbird in pop mail for gmail.com and mail.com. I save all important messages daily to Folders in Local Folders. Today I attempted to look for messages in one folder named Family and Friends and found that messages older than 2/14/2024 are missing. I checked other folders and found that they seem OK with messages going back 5 to 10 Years. I tried running repair but nothing changed. Any idea where these files can be? I do have backups of the app data for Thunderbird and am considering to try a prior version but I'm afraid I might lose new saved messages. If I tried to Archive messages, could this be the problem? I have looked in Archive and found very little. Any help would be appreciated. Frank

Please ignore this question. I found my older messages.

There is one correspondent whose emails come in, flash on the screen for a second and then disappear. I find it in Junk. I've got the email addres whitelisted on my provider's filters. How can I intercept this process. It's only the one address. So far. Can I whitelist address on TB? I've got it set to not intercept anyone in my address book and this address is definitely inmy address book.

I have created an entry in my Personal Address Book. When I am in that address book I click on the Import tab. I select CSV file. It provides me a File Dialog to select my CSV file. But then it provides me with a File Dialog to select an address book file. The address book I want to use is the one I am currently "in" in the program. But if I for some reason I wanted to import into another existing address book, I should either have to get "in" that one, or it Mozlla Thunderbird would list the address books it knows about as a selection.

It appears I am supposed to select the file that Mozilla Thunderbird created somewhere. From a search it appears (this is on Windows 11) from the App Store that is somewhere in ..\AppData\Local\MozillaThunder.MZL_h<numbers and letters>\LocalCache\<Roaming | Local>.

I don't understand why I am choosing a file that is already open in Mozilla Thunderbird?

I am using Thunderbird Supernova and am pretty happy with it. However, I cannot figure out how to specify a different time zone than the system timezone when creating an event. For example, if I just bought a flight that departs at 4PM London time and I am in Miami when creating the event, how can I create this event without having to convert that time to my current time?

Surely this is possible but I can't figure out how. Thanks for any help!

I was in the middle of generating a long "reply all" to a message and wanted to jump to a new page when it would be printed. I absent-mindedly hit Ctl-Shift-Enter and the entire window disappeared and there was nothing in Drafts! Ctl-V just restores the last thing I added to this very long reply! I had been working on this for 90 minutes, doesn't Thunderbird continually update Drafts while working on a long email?

Hi,I have 4 email address & my Default Email is ismda3@westvic.com.au(on SMTP) Regardless which email I TRY to REply to.I receive the Samr Message See attachment I am getting very desperate Thanks Darryl

I've installed TBSync with Thunderbird and my O365 calendar is now syncing.

However, my email subfolders are not fully updating.

I have a # of subfolders I've created in O365 but they aren't appearing in TBSync in order to choose them to sync in Thunderbird. I am getting some (what I would call 'standard') subfolders in TBSync to choose such as Contact, Calendar, Tasks, and some other email accounts I have 'sync'd' into O365, but none of the actual email subfolders for the O365 account itself (i.e. 2024 Financials).

In Thunderbird, the only folders I see to sync (Synchronization & Storage > Advanced)are: Inbox, Draft, Sent, and Trash

What am I doing wrong or missing?