Thunderbird Support Forum

Start new Windows session. Start Thunderbird and works OK. Shut Thunderbird down and try to re-start during same Windows session and it will not launch. Reboot Windows and try to start Thunderbird and works OK. Alternatively, going into Task Manager there will be a number of Thunderbird processes running. If I manually end them all (while Thunderbird is NOT active) then I can restart as normal too. This all began with 124.0 Beta 1. Never had the issue prior.

Also, Thunderbird crashes if restarting within the app. By this I mean clicking the X it appears to close (excepting those persistent processes running) but "Restart Thunderbird" such as to launch Troubleshooting mode or from the "Restart to update Thunderbird" config crashes the app with 100% consistency.

I upgraded to Thunderbird 115.10.0 (x64) earlier today and now the program is no longer closing completely (I've tried using the X at the top right of the window, and I've also tried File menu -> Exit). I first discovered this when I was using CCleaner to clean my temporary items and it asked me if I wanted to close Thunderbird after I had already closed it. I then checked my running processes and there are three Thunderbird processes that remain after the program has supposedy closed (Task Manager screenshot attached).

Any help with this seemingly new bug is greatly appreciated!

Much thanks, -Snipe

I have used Thunderbird for many years without a issue. But as of a couple days ago I have been getting errors when I open Thunderbird. 1) It always ask me to login even after I save the password to always login. 2) I get this message: "Login to server imap.comcast.net with username caulkerguy@comcast.net failed." 3) Then I get this error message "Alert from account caulkerguy@comcast.net 1014." I have checked all my Server settings and all are correct as per your online settings. I have searched the web and have not found any fixes. Are there any fixes or work arounds? I would hate to stop using Thunderbird as I really like it! I have included 2 screenshots.Thanks for any and all help! Mike: caulkerguy@comcast.net or caulkerguy@gmail.com

Hi All, Greetings!!! For the past two days, I have got the error like "Sending of the message failed. The message could not not be sent because the connection to Outgoing Server (SMTP) timed out". So I have restared our router (Broadband Modem), and then tried to send the mail, but the result is same. Then I have tried using my mobile network (using hotspot method), this time mail was sent sucessfully. Please help me to solve the issues...

Thanks Karthik

Hi, My google has MFA enabled and also i have enabled 0auth2 on server settings and SMTP on TB. still getting the authentication error. I have tried to disable to mcaffee antivirus, allowed mozille thunderbird on windows firewall.

And also, Im not able to see, thunderbird on third-party apps on google profile.

still no luck, please help me ASAP. i have configured my TB on imap. FYI

Hello, having problems importing an USA calendar from Thunderbird site. Just need a basic one with federal holidays but probably hundreds listed. And the 'select all' and 'deselect all' not properly working as well as issues with filters. And do we really need Confederate holidays?

"Enter Password" box no longer comes up when I start up Thunderbird. One account has password saved but the other doesn't so I cannot access emails on this account now as they won't download without either a saved password or (as I usually do) entering a password. This affects my husband also so not just something on my account. This happened around the 20th December. I've searched through Thunderbird settings but I can't find any way of adding a password directly into Password Manager - only edit or delete. So I can't fix the problem we now both have with accessing new emails. So - any suggestions please or is there a fix coming?, kind regards

Hi there,

My grandmother on this account keeps receiving a enter primary password alert on her Thunderbird / Bigpond account. We've tried everything and when following the prompts to reset (tools > developer tools > etc) it won't come up with the evaluate button or reset button. We've tried the online sources but no success and she can't access her emails on her desktop. Please let me know what we can do !

when clicking an email link this is shown

"Thunderbird is already running, but is not responding. To use Thunderbird, you must first close the existing Thunderbird process, restart your device, or use a different profile."

How do I make Thunderbird instead open a new email?

This is on Fedora

Upon reopening Thunderbird mail today, I find that the latest update does not allow emails to be opened in a new window with one-click. Clicking on an email launches the message in a new tab instead of a window. Why create a new issue like this? DUMB . . . please fix.

I am unable to Quit Thunderbird. MacOS Sonoma; TB 115.6.1, Mac Pro 2019. Hang text below:

AdapterDeviceID: 0x66a3 AdapterVendorID: 0x1002 Add-ons: google%40search.mozilla.org:1.0,bing%40search.mozilla.org:1.0,amazon%40search.mozilla.org:1.1,chambers-en-GB%40search.mozilla.org:1.0,ddg%40search.mozilla.org:1.0,wikipedia%40search.mozilla.org:1.0,default-theme%40mozilla.org:1.3 AvailablePhysicalMemory: 40525901824 AvailableSwapMemory: 1040973824 BackgroundTaskMode: 0 BuildID: 20240105183125 ContentSandboxCapable: 1 ContentSandboxLevel: 1 CrashTime: 1705981620 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true GpuSandboxLevel: 0 GraphicsNumRenderers: 0 HeadlessMode: 0 InstallTime: 1705709005 LastStartupWasCrash: 0 MacAvailableMemorySysctl: 94 MacMemoryPressure: Normal MacMemoryPressureCriticalTime: Unset MacMemoryPressureNormalTime: 1705981506 MacMemoryPressureSysctl: 1 MacMemoryPressureWarningTime: Unset MozCrashReason: Shutdown hanging at step XPCOMShutdownThreads. Something is blocking the main-thread. Notes: FP(D00-L1000-W0000000-T010) WR? WR+ GL Context? GL Context+ ProductID: {3550f703-e582-4d05-9a08-453d09bdfdc6} ProductName: Thunderbird PurgeablePhysicalMemory: 729776128 ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 222 ShutdownProgress: xpcom-shutdown-threads ShutdownReason: AppClose StartupCacheValid: 1 StartupCrash: 0 StartupTime: 1705981506 SubmittedFrom: Client TelemetryEnvironment: {"build":{"applicationId":"{3550f703-e582-4d05-9a08-453d09bdfdc6}","applicationName":"Thunderbird","architecture":"x86-64","buildId":"20240105183125","version":"115.6.1","vendor":null,"displayVersion":"115.6.1","platformVersion":"115.6.0","xpcomAbi":"x86_64-gcc3","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":98304,"virtualMaxMB":null,"cpu":{"count":32,"cores":16,"vendor":"GenuineIntel","name":"Intel(R) Xeon(R) W-3245 CPU @ 3.20GHz","family":6,"model":85,"stepping":7,"l2cacheKB":1024,"l3cacheKB":22528,"speedMHz":3200,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"name":"Darwin","version":"23.2.0","locale":"en-GB"},"hdd":{"profile":{"model":null,"revision":null,"type":null},"binary":{"model":null,"revision":null,"type":null},"system":{"model":null,"revision":null,"type":null}},"gfx":{"D2DEnabled":null,"DWriteEnabled":null,"ContentBackend":"Skia","Headless":false,"EmbeddedInFirefoxReality":null,"adapters":[{"description":null,"vendorID":"0x1002","deviceID":"0x66a3","subsysID":null,"RAM":0,"driver":null,"driverVendor":null,"driverVersion":null,"driverDate":null,"GPUActive":true}],"monitors":[{"screenWidth":5120,"screenHeight":2880,"scale":2}],"features":{"compositor":"webrender","hwCompositing":{"status":"available"},"gpuProcess":{"status":"unused"},"webrender":{"status":"available"},"wrCompositor":{"status":"available"},"openglCompositing":{"status":"available"},"omtp":{"status":"unused"}}},"appleModelId":"MacPro7,1","hasWinPackageId":null},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":8,"fissionEnabled":true,"telemetryEnabled":false,"locale":"en-GB","intl":{"requestedLocales":["en-GB"],"availableLocales":["en-US","en-GB"],"appLocales":["en-GB","en-US"],"systemLocales":["en-GB"],"regionalPrefsLocales":["en-GB"],"acceptLanguages":["en-GB","en"]},"update":{"channel":"release","enabled":true,"autoDownload":true,"background":true},"userPrefs":{"browser.cache.disk.capacity":1048576,"browser.fixup.alternate.enabled":false,"browser.search.region":"GB","layout.css.devPixelsPerPx":"1.5","network.proxy.autoconfig_url":"<user-set>","network.proxy.http":"<user-set>","network.proxy.ssl":"<user-set>","network.trr.strict_native_fallback":false,"widget.content.gtk-high-contrast.enabled":true},"sandbox":{"effectiveContentProcessLevel":1,"contentWin32kLockdownState":3},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":null,"defaultSearchEngine":"google","defaultSearchEngineData":{"loadPath":"[addon]google@search.mozilla.org","name":"Google","origin":"default","submissionURL":"https://www.google.com/search?q="}},"profile":{"creationDate":13599},"addons":{"activeAddons":{},"theme":{"id":"default-theme@mozilla.org","blocklisted":false,"description":"Follow the operating system setting for buttons, menus and windows.","name":"System theme — auto","userDisabled":false,"appDisabled":false,"version":"1.3","scope":4,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18925,"updateDay":18925},"activeGMPlugins":{"dummy-gmp":{"version":"0.1","userDisabled":false,"applyBackgroundUpdates":1}}}} Throttleable: 1 TotalPhysicalMemory: 103079215104 URL: https://www.mozilla.org/en-US/privacy/thunderbird/ UptimeTS: 113.76406045 Version: 115.6.1 XPCOMSpinEventLoopStack: default: nsThread::Shutdown: IMAP useragent_locale: en-GB

This report also contains technical information about the state of the application when it crashed.

Dear reciever. After years of using TB and what we do think is a productive mail-tool that works for the benefits we are looking for has worked. However, the last 115- constantly freezing and shuts down. This is very annoying. It freezes at some folders from the main email-client- as we have deleted older folders integrated with this. But the problems remains. . We have done everything in our knowledge of the program but still no approvement. . At this point we are using Outlook..would be grateful to have some answers and possible sollutions for this issue. . Thanks in advance and keep up the great work U are doing. :-)

After updating to the most recent version of Thunderbird, I cannot send email using my address of billward@kc.rr.com. I can send email using my address of billward122@gmail.com. When I click Send, I get this message: "Send message error. Sending of the message failed. An error occurred while sending mail. The mail server responded: billward@kc.rr.com sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again."

All my account settings, including my email address, are the same as they have always been. The problem with not being able to send emails only started a few days ago. I suspect it is related to the latest automatic update to version 115.4.1(32 bit) or to updates just before this one.

How can I get Thunderbird to let me send emails again the address of billward@kc.rr.com? Thank you.

I use dark mode (Windows 10 Pro, Thunderbird 115.4.2 (64-bit)). Fresh installation, fresh profile. When I reply to some emails, the reply text is not visible. The examples I saw were with a light (white?) background, but I'm not sure if it also happens with other backgrounds. But it's not all white backgrounds either, some emails with a light background I can reply to just fine.

The reply area can be dark with a dark grey font (slightly different color), or it can be white with a white font. In both cases, obviously the text I type is not readable.

Any idea how to fix this?

All of a sudden all of my Comcast accounts are receiving the message: "Alert from account XXXXXX: Temporarily blacklisted IP Address - Try again later". Contacted Comcast and elevated all the way up to the top technical group and was told it was a Thunderbird issue. Tried resetting passwords, etc to no avail.

Lately, I noticed that TB is quite slow at loading messages so I looked up for a solution and found that compacting folders could help a bit. The problem is that when I tried to compact some folders TB started to write hundred of GBs to disk completely filling my ssd and ultimately failing with a 'not enough disk space error'.

I don't think this is supposed to happen. Can I fix my inbox or should I start from scratch?

Hello, The scrolling speed of the different toolboxes in the software became much too fast with the pad on my computer (Zenbook 14"). It didn't do that before the last update. Am I the only one? I lose a lot of time every day with this bug.

Thanks :-)