Firefox Root Certificate Expiration: Questions & Tips for Updating

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s … (read more)

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s crucial to update to Firefox 128 or newer to avoid issues with add-ons, DRM-protected content, and other features.

For full details, check out Update Firefox to prevent add-ons issues from root certificate expiration.

If you have questions about the update or need help with the process, this is the place to ask! Whether you’re just starting or you’ve already updated and want to share your experience, we’d love to hear from you.

Let’s come together, share tips, and ensure we’re all prepared. Drop your questions or insights below!

Asked by Lucas Siebert 4 months ago

Last reply by James 4 hours ago

Thunderbird asks me to sign in every time

I have not changed my email accounts or my Google & Microsoft usernames or passwords. A few days ago when I started Thunderbird, two Google pop-ups arrive reading "Mo… (read more)

I have not changed my email accounts or my Google & Microsoft usernames or passwords. A few days ago when I started Thunderbird, two Google pop-ups arrive reading "Mozilla Thunderbird Email wants to access your Google Account" demanding that I deny or allow it. Why might this be happening and how do I stop it? This does not occur with other email apps such as Outlook for Windows.

Asked by Rebecca Turner 4 months ago

Last reply by Toad-Hall 2 weeks ago

Writing on folder failed

I have seen many questions a bit like mine but they all refer to downloading emails. Mine is different: "The folder 'Trash on my@email.com' could not be compacted because… (read more)

I have seen many questions a bit like mine but they all refer to downloading emails. Mine is different: "The folder 'Trash on my@email.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again." It now happens on two different email addresses (one is POP one is IMAP). Trash seems otherwise to work and can be deleted. But still this alarm. MAS OS 15.1.1 (24B91) - latest Thunderbird 128.5.2esr (64-bit)

Asked by Gilbert in Beijing 1 month ago

Last reply by frisée 1 month ago

Mails Orange effacés par erreur

Bonjour, J'ai effacé par erreur un dossier et ses sous-dossiers directement dans ma messagerie Orange. J'ai ensuite installé Thunderbird qui voit ces dossiers dans la pou… (read more)

Bonjour, J'ai effacé par erreur un dossier et ses sous-dossiers directement dans ma messagerie Orange. J'ai ensuite installé Thunderbird qui voit ces dossiers dans la poubelle mais ils restent désespérément vides des mails qu'ils contenaient. Est-il possible de les récupérer malgré tout svp ?

Asked by douchin.regis 1 month ago

Last reply by Mapenzi 3 weeks ago

Layout problem, can't find the menu tab to change layout of my email

I'm working in Windows 11 on my PC and can't find the menu tab to change layout of my email. The only instructions I see were posted ibn 2017. Why is this so difficult?… (read more)

I'm working in Windows 11 on my PC and can't find the menu tab to change layout of my email. The only instructions I see were posted ibn 2017. Why is this so difficult?

Asked by joda1 3 months ago

Last reply by Wayne Mery 3 months ago

restoring email in thunderbird has stopped with mai 2024 for aol, gmx, gmail. (linux)

Hello, restoring email in thunderbird has stopped with mai 2024. How can this fixed? please ask me for concrete support. Do no send me to the next address. koffie … (read more)

Hello,

restoring email in thunderbird has stopped with mai 2024. How can this fixed?

please ask me for concrete support. Do no send me to the next address.

koffie

Asked by koffie 1 month ago

Last reply by Wayne Mery 1 month ago

Want the export tool for thunderbird for Android, but having trouble updating to desktop v128.4.x from v115 msix (win11)

Hello, I've got the french version of Thunderbird on my laptop. I want to have it now on my smartphone Android. But impossible to find the function "move to mobile" in th… (read more)

Hello, I've got the french version of Thunderbird on my laptop. I want to have it now on my smartphone Android. But impossible to find the function "move to mobile" in the parameterss... Please help me !

Asked by Marc Pahud 3 months ago

Last reply by Wayne Mery 2 months ago

Inbox / Mailbox Q

When I use my PC (main device) Thunderbird shows individual mail folders, on my iPad the default mail client as well as individual account folders has an 'All Inboxes' Th… (read more)

When I use my PC (main device) Thunderbird shows individual mail folders, on my iPad the default mail client as well as individual account folders has an 'All Inboxes' This is very useful as 95% of my mail will go to one account .... so having an 'All folders' account ensures I don't miss a mail arriving on a less used account.

Is there a way to set this up on Thunderbird?

Asked by rick_hughes 2 months ago

Last reply by david 1 month ago

Thunderbird, outlook and win7 ?

Microsoft outlook warned that I will no longer be able to use thunderbird after Sept 16th unless I use Oauth. I've tried changing settings to allow Oauth, but it's not l… (read more)

Microsoft outlook warned that I will no longer be able to use thunderbird after Sept 16th unless I use Oauth. I've tried changing settings to allow Oauth, but it's not listed as an option fot outgoing mail. Is this because I'm running windows 7? Is there any way around this, I want to keep win 7?

Thanks...

Asked by Colin Colin 4 months ago

Last reply by christ1 4 months ago

refreshing size of TB profile

Just wondering why when I organize/delete my emails in TB (have several accounts in there) my profile size does not go down but always up? Should I be refreshing or som… (read more)

Just wondering why when I organize/delete my emails in TB (have several accounts in there) my profile size does not go down but always up? Should I be refreshing or something like that?

Asked by OldBob2 1 month ago

Last reply by frisée 1 month ago

Thunderbird 128.2.0 Crashing on Start up (bug 1907691)

Hello, Thunderbird keeps crashing. That is about all that I can tell you. It started this morning (/when I got to work I fist noticed it). I have not used any add ons.… (read more)

Hello,

Thunderbird keeps crashing. That is about all that I can tell you. It started this morning (/when I got to work I fist noticed it). I have not used any add ons. I have been submitting crash reports. Crash data avaiable on request. I uninstalled and re installed, same result; crashes immediately on start up.

Please assist.

Thank you

Toll

Asked by Toll 5 months ago

Last reply by Wayne Mery 3 months ago

Tracking Protection

I recently encountered an issue when attempting to login to The Coventry Building Society website using Firefox (desktop PC & Windows 10):- https://www.coventrybuildi… (read more)

I recently encountered an issue when attempting to login to The Coventry Building Society website using Firefox (desktop PC & Windows 10):- https://www.coventrybuildingsociety.co.uk/ It failed to display the page used to enter the one time passcode used for two factor authentication.

After looking on some forums I discovered this is because 'Strict' tracking protection was enabled. If I change to 'Custom' and uncheck 'Tracking Content' then things work as expected.

I also read on a forum that you can leave tracking protection set to 'Strict' but enter the URL for the problem website under 'Enhanced Tracking Protection -> Manage Exceptions'. I tried entering 'https://www.coventrybuildingsociety.co.uk/' Initially this appeared to work. However, when I tried it again the following day, the page failed to load as before. I had to change back from 'Strict' to 'Custom' and uncheck 'Tracking Content' once again. It's as if the exception URL is ignored in 'Strict' mode.

Am I doing something wrong or is this how it is supposed to work? Do I need to click on the shield icon (to the left of the padlock icon) and turn off 'Enhanced Tracking Protection' every time I visit the website?

Asked by brian_mk 1 week ago

Last reply by jscher2000 - Support Volunteer 1 week ago

Help Needed with oauth Login Issues

I've been using Thunderbird for several years now without any issues, and I currently have the latest version installed. I typically have multiple email accounts logged i… (read more)

I've been using Thunderbird for several years now without any issues, and I currently have the latest version installed. I typically have multiple email accounts logged in. Recently, I tried adding a Gmail account, but it wouldn’t log in, showing the error: "Unable to log in at server. Probably wrong configuration, username, or password."

I’ve tried the usual fixes like closing and reopening Thunderbird, clearing cache files, and even searching online for solutions. Based on what I found, I’ve tried turning off VPN/antivirus, changing the default browser, clearing browser data, and, finally, uninstalling and reinstalling Thunderbird after removing all my email accounts.

Now, I’m unable to log in to any of my accounts, which were working fine before. Can anyone guide me on how to resolve this issue?

Thanks in advance!

Asked by Guru A 5 months ago

Last reply by david 4 months ago

File Storage Size and Location - Thunderbird using 36GB, gmail claims 6GB

HI, I have TBird 102.15.1 64Bit installed on several different PCs and laptops. On my main Laptop I checked the Roaming\Thunderbird folder properties and found the follow… (read more)

HI, I have TBird 102.15.1 64Bit installed on several different PCs and laptops. On my main Laptop I checked the Roaming\Thunderbird folder properties and found the following: Size on Disk: 35.8 GB Contains 253,172 files and 1,533 Folders. Is their anyway I can reduce the size? My TBird seems to be running slowly and occasionally stalls. I do not want to switch back to Outlook client program, I am not a Microsoft supporter. I do know I could move mail to local folders but would that mean I could only access them from one machine? Thanks.

Asked by P Brixey 4 months ago

Last reply by Wayne Mery 4 months ago

I can no longer sign in to my email. HELP!

I recently upgraded FF on this computer and can no longer sign in to my att.net email account, although I was able to sign in on another computer on FF earlier today. I … (read more)

I recently upgraded FF on this computer and can no longer sign in to my att.net email account, although I was able to sign in on another computer on FF earlier today. I just get an error message and Att can't help...is there a setting that has me locked out? I can also access email on other browsers just not the FF version on this computer.

Asked by onekooch 2 weeks ago

Last reply by jscher2000 - Support Volunteer 6 days ago

How to stop 128 ESR is automatically updating to broken Thunderbird 131

I've never knowingly installed a non-mainline thunderbird, but earlier this week I started getting the following when I open Thunderbird: This is an unsupported version … (read more)

I've never knowingly installed a non-mainline thunderbird, but earlier this week I started getting the following when I open Thunderbird:

This is an unsupported version of Thunderbird!! Thunderbird monthly releases are not considered stable for general use. Use at your own risk, this build is the same quality as Thunderbird Beta.

Checking the version of thunderbird.exe It says its v131, which happens to be the same as the copy of Firefox installed. When I remove and reinstall Thunderbird it starts off as 128 but quickly changes to 131, even after uninstalling Firefox. (Also annoyingly, this stomps on the version in the profile, which 128 claims is no longer compatible, because Thunderbird isn't clever enough to save a copy of files when it makes "breaking" changes to user files)

I wouldn't being on 131 if actually worked, but it gets stuck in the handshake with my IMAP server, and doesn't even show the local folder caches. (It also for some reason shows the window controls on left side of the window title bar, rather than the right).

How can I restore standard functionality?

Asked by belg4mit 4 months ago

Last reply by david 4 months ago

Thunderbird Inbox not displaying messages

Following a switch off and restart triggered I think by a Windows update, Thunderbird is not displaying any messages in my Inbox, though it is showing the number of messa… (read more)

Following a switch off and restart triggered I think by a Windows update, Thunderbird is not displaying any messages in my Inbox, though it is showing the number of messages in the Inbox title bar. 'Drafts' and 'Sent' all display correctly, but the 'Inbox' is blank with a grey icon of an envelope and the statement: "No message found". I am an IT novice. I looked on the 'help' pages. I have checked that no filters are set. I have right-clicked on the 'Inbox' title to display the menu with 'properties' at the bottom. I have clicked on that to bring up the dialog box with the "Repair" icon. It shows 'Inbox' in the 'Name' box but I note that the 'Location' box is blank. Presumably it should not be. Presumably it should show either the location of locally stored messages on my hard drive, or the location of the messages on the email server. I am not sure which. I have found the directory on my hard drive where I believe the messages are stored locally. The size of the file suggests to me that they are all there. The periodic 'Checking for new messages' is happening, but nothing is displaying, though a check via webmail shows that new messages are arriving on the server. What should I do to get my Inbox to display correctly? With many thanks, Iain

Asked by iwright2 1 day ago

Last reply by DavidGG 31 minutes ago

In Windows 11, how do I access the folders beneath Local Folders

In Windows 11, the Address Book is accessed via an icon on top left of the TB main page or Alt+2. In Windows 11 is there a similar key combination to view the folders be… (read more)

In Windows 11, the Address Book is accessed via an icon on top left of the TB main page or Alt+2. In Windows 11 is there a similar key combination to view the folders below Local Folders?

Asked by 4freebird 3 months ago

Last reply by Toad-Hall 2 months ago