Thunderbird Community Forum

I'm running TB on Windows 11 on a Dell Desktop machine. It's a pretty basic installation with EE Cyber security, which is I think Norton. I've been using TB for a couple of years but recently it has almost stopped working. I notice from Task Manager that TB is massively leaking memory and consuming much CPU time. I don't think I have any add-ons and I only use TB for email. It's now so bad that I'm even unable to go into TB's Settings or Tools or anything else. I've tried creating an exclusion for TB profiles and TB.exe in the Norton. I've tried starting TB in troubleshoot mode but all to no avail. I have it in IMAP, Port 993, SSL/TLS for incoming mail and Port 465, SSL/TLS, Authentication Required for Outgoing mail. I'm currently often unable to even access mail previously downloaded to the local Mail folders, TB is just hanging with the bar in the lower right corner endlessly running along. Most puzzling of all, is that very occasionally is starts working again and then I dare not switch the machine off! It's become an indeterminate system. Please help, I'm nearly eighty and trying to organize my holiday, which is needs email to make bookings. Thanks in anticipation.

So thunderbird mail has this system where old emails spread horizontally across the top of the screen in small icons and if you select and open an older email from the sidebar for the inbox and then want to return to the inbox, the only way I have found to return to the inbox is to click and hold the left arrow on that horizontal bar at the top with the email icons. This is too time consuming. Is there a faster way? Also, is that bar necessary? Why not just have a system that uses the sidebar that actually identifies the individual emails.

After the last update of Thunderbird, we lost the ability to send gmail messages from our pop gmail account. We only got incoming messages when we restarted thunderbird. We've worked for 6 hours with Claude Opus and it finally gave up. Out AOL account and our comcast accounts still work. We tried to create a new imap account in gmail and that spins forever. Account does not get created. the last error message was " Error Creating Account - Incoming server already exists."

Then we tried deleting the pop account and then creating a imap account and that also spun forever failing to create an account. Webmail works.

Addressing the problem, Practice Better says my acct is not blocked on their end. They say put

notifications@practicebetter.io in a safe senders list, but I can't find anything like that. How could I get my Thunderbird email acct to accept Practice Better's messages?

Thanks, Jane Kroll

I am not able to receive or send emails using my wifi, but can using data (same provider). I have queried this with my email host and wifi provider and both have said there is no issue on their end that would block these actions. The email host suggested I change port 465 to 587 for outgoing to see if that made a difference. It did not.

This issue is occurring on the web platform as well as the android app.

The error message in account setting is: an error occurred connecting to gsyd1001.siteground.net:993."

Currently using TB 153.0, Win 11 on desktop PC.

In past versions there was a progress bar on right end of the status line, along bottom edge of the screen, that showed progress while TB was compacting folders. That bar hasn't been visible in last few updates.

When prompted today, I allowed TB to start compacting. I'd permanently deleted a really big bunch of old emails in last few days, so probably a lot of space that could be recovered. I kept waiting and waiting and waiting, but without the progress I had no idea if TB was busy or possibly frozen. So I just left it alone. When I came back and tried to manually start compacting, it immediately said "Done, 0K saved". So it had obviously done the compacting.

If it's an option, how do I enable that progress bar? If not currently available, please consider restoring it in future TB updates. I -for one- think it's a very useful feature.

THX!

‘spam filters do not work. After 18 years of putting up with it I want block senders and sender ip's WHAT IS UP? WHY DON"T YOU FIX THIS - Do I have to go to M$oft?????’ for ‘Thunderbird’

My Thunderbird does look strange, though it works alright. It annoys me, there are black-gray rectanguler spots left top and bottom. It dissapears when in full screen mode. It is not in any other program. I add a picture. Is there anybody who knows how to solve this. Thanks, Hans, Netherlands

Version 153 brought account colors to the desktop app.

Is there any smoother way to transfer just these settings, no more, no less, to other machines, other than copying the whole profile? I'm using TB on 3 different pc's, of which one has a special profile.

Right now I made screenshots of all 7 accounts + color. I can do it by hand but that's rather cumbersome.

Is there a way to change the default font color for replies in Thunderbird? Nothing I do works, and it is a real pain to have to manually change the color every time I reply to an email.

Thanks.

I keep getting alert notices on my phone from thunderbird. It started when i was going to add thunderbird to one of my other devices. But i changed my mind and deleted it on that device.

Not sure if I picked the correct topic for this...

I had to reinstall Windows 11 on my PC as the old copy was corrupt to the point I could not install updates, even with Microsoft's help. Before I made the plunge, I used Tools -> Export to create a zip file on my D:. After installing Thuderbird on the rebuilt copy, I went to Tools -> Import to recover everything.

About 19% in, I received error "Import failed unexpectedly, more information may be available in the Error Console." I found the Error Console but don't know how top proceed.

Initial messages: module is not a constructor ExtensionCommon.sys.mjs:1679:15 EmptyDatabaseError: "blocklists/addons-bloomfilters" has not been synced yet Database.sys.mjs:19:5 NS_ERROR_ABORT: Password dialog canceled 2 MsgIncomingServer.sys.mjs:923:24

Messages at the bottom of the console: Uncaught (in promise) NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.copyTo]

   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.sys.mjs:781
   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.sys.mjs:772
   _mergeLocalFolders resource:///modules/ThunderbirdProfileImporter.sys.mjs:745
   _importServersAndAccounts resource:///modules/ThunderbirdProfileImporter.sys.mjs:354

ThunderbirdProfileImporter.sys.mjs:781:19 1785523577301 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/26c785ea-2226-4024-9b0e-cf44ce2860f7/first-shutdown/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577301 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 26c785ea-2226-4024-9b0e-cf44ce2860f7: {"isTrusted":true} Log.sys.mjs:722 1785523577302 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/bc5b8fd6-8907-4169-9e98-2c732d265c20/main/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577302 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping bc5b8fd6-8907-4169-9e98-2c732d265c20: {"isTrusted":true} Log.sys.mjs:722 1785523577302 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/01ee7ef8-942d-4fbd-a404-debd99ad5e4d/new-profile/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577302 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 01ee7ef8-942d-4fbd-a404-debd99ad5e4d: {"isTrusted":true} Log.sys.mjs:722 1785523577325 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/1f64b615-ed65-4a65-8853-7bd3e3077b54/health/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577330 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/26c785ea-2226-4024-9b0e-cf44ce2860f7/first-shutdown/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577330 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 26c785ea-2226-4024-9b0e-cf44ce2860f7: {"isTrusted":true} Log.sys.mjs:722 1785523577331 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/bc5b8fd6-8907-4169-9e98-2c732d265c20/main/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577331 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping bc5b8fd6-8907-4169-9e98-2c732d265c20: {"isTrusted":true} Log.sys.mjs:722 1785523577331 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/01ee7ef8-942d-4fbd-a404-debd99ad5e4d/new-profile/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523577331 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 01ee7ef8-942d-4fbd-a404-debd99ad5e4d: {"isTrusted":true} Log.sys.mjs:722 1785523577334 Toolkit.Telemetry WARN TelemetryStorage::_scanArchive - have seen this id before: 1f64b615-ed65-4a65-8853-7bd3e3077b54, overwrite: false pop3.server1.1: NetworkTimeoutError: a Network error occurred Pop3Client.sys.mjs:381:18 pop3.server1.1: SecurityError info: Pop3Client.sys.mjs:441:20 pop3.server1.1: SecurityError cert chain: imap.email.comcast.net; serial# 5F:F9:03:A2:A2:B8:A3:45:AE:17:FE:A1:C9:15:D6:45 <- Norton Web/Mail Shield Root; serial# 2F:61:CC:98:EC:34:F2:43:99:93:5B:E6:A0:A5:DF:E2 Pop3Client.sys.mjs:446:22 1785523697961 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/1f64b615-ed65-4a65-8853-7bd3e3077b54/health/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523697961 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 1f64b615-ed65-4a65-8853-7bd3e3077b54: {"isTrusted":true} Log.sys.mjs:722 1785523697962 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/26c785ea-2226-4024-9b0e-cf44ce2860f7/first-shutdown/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523697962 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 26c785ea-2226-4024-9b0e-cf44ce2860f7: {"isTrusted":true} Log.sys.mjs:722 1785523697962 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/bc5b8fd6-8907-4169-9e98-2c732d265c20/main/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523697962 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping bc5b8fd6-8907-4169-9e98-2c732d265c20: {"isTrusted":true} Log.sys.mjs:722 1785523697963 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/01ee7ef8-942d-4fbd-a404-debd99ad5e4d/new-profile/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523697963 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 01ee7ef8-942d-4fbd-a404-debd99ad5e4d: {"isTrusted":true} Log.sys.mjs:722 1785523947429 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/1f64b615-ed65-4a65-8853-7bd3e3077b54/health/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523947429 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 1f64b615-ed65-4a65-8853-7bd3e3077b54: {"isTrusted":true} Log.sys.mjs:722 1785523947430 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/26c785ea-2226-4024-9b0e-cf44ce2860f7/first-shutdown/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523947431 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 26c785ea-2226-4024-9b0e-cf44ce2860f7: {"isTrusted":true} Log.sys.mjs:722 1785523947431 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/bc5b8fd6-8907-4169-9e98-2c732d265c20/main/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523947431 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping bc5b8fd6-8907-4169-9e98-2c732d265c20: {"isTrusted":true} Log.sys.mjs:722 1785523947431 Toolkit.Telemetry ERROR TelemetrySend::_doPing - error making request to https://incoming-telemetry.thunderbird.net/submit/telemetry/01ee7ef8-942d-4fbd-a404-debd99ad5e4d/new-profile/Thunderbird/153.0.1/release/20260728090639?v=4: eUnreachable Log.sys.mjs:722 1785523947431 Toolkit.Telemetry ERROR TelemetrySend::sendPersistedPings - failed to send ping 01ee7ef8-942d-4fbd-a404-debd99ad5e4d: {"isTrusted":true} Log.sys.mjs:722

I have an image copy of my old installation. Can I simply locate the Thunderbird profile on the backup and restore it?

Thunderbird display messages in boxes arranged horizontally accross the top of the screen. How do I change that displAy to a list of messages listed from the top of the page to the bottom

Since upgrading to Thunderbird Meadow 153.0 and 153.0.1 when I click on show remote content it opens new tabs in Firefox 153.0. and 153.0.1. The remote content does not appear in the email. Depending on the amount of remote content results in the number of new opened tabs. I have restarted both Firefox and Thunderbird without any differences in the outcome. I did not change any of the settings upgrading to version 153.0 and as far as I can remember I have not changed any settings in 20 years.

I can't get Thunderbird to stop updating. My installation is currently set as follows:

Settings > Updates > "Check for updates, but let me choose whether to install them."

That was done around the 21st July, and the version=152.0.1. I was never prompted to update. When I checked today (27th July) version=153.0 and Settings remains the same (as above).

The setting is being ignored. Is there a workaround? Like setting up my installation to deny access to something. (Maybe, like if the update process needs a certain directory to be present, remove the directory.)

I need help. How do I troubleshoot TBird asking for a password that disappears when I go into troubleshooting mode? In other words, I can enter anything in for the password, or dismiss/close the pop up box, and nothing is effected by it. I still get all me email for all accounts. The only thing at the top of the box is a user name (pmruzicka). At this point, I have deleted the accounts that used that user name, including all info for the outgoing servers (even tho this password request pops up at TBird start). I have Disabled ALL extensions one at a time and the pop up still happens. I have set TBird to default them,e - pop up still there. I have unchecked the hardware acceleration box - pop up still there. I have no clue what else I could do at this point. I do NOT have a Primary password set. Can someone please help me figure this out? Getting tired of having to click off that pw box every time I start TBird. Thanks. Also, this has been happening through the last few updates of TBird.

All of my emails are being marked as read immediately. I have that option turned off in settings on all devices. I am not using bit defender. This only started after I moved to a windows 11 computer. I only have one account. I have read the previous forum similar issues.