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I have been using Thunderbird with multiple POP accounts for about 15 years with few problems.

Since upgrading to the latest version, with was about a week ago, emails are downloaded again and again, for as long as they remain on the server, which is for most accounts 7 days.

I can see the emails are marked as read on the server (my host is X-10 Infinity and been using them for 4 years), but every time Thunderbird connects to the server, it downloads all the messages again.

My mailboxes are filling up with duplicate messages, sometimes 10+ copies of each one. I haven't changed any settings on the server or in Thunderbird, so not sure what is causing this.

If I click to Get Messages manually, Thunderbird only downloads 1 or 2 messages, if anything. But for some reason when the scheduled connect runs (for example: every 30 minutes) it seems to pull down all messages in the POP mailbox again and again.

Is there anything I can set or change to fix this please, or is this a bug you are working on?

I really don't want to change so I download messages from the server and delete them immediately rather than in 7 days as this allows me to have a backup in case my computer needs to have a re-install.

Thanks for any help. I'm sure I'm not alone with this problem.

Tony Payne

As of today, I am unable to scroll with my mouse in google sheets. The scroll bar on the right disappears and I'm taken to the bottom of the spreadsheet and can't scroll back up. I have to use CTRL+Home and then the arrow keys to go down the rows. This appears to be only on Firefox. I tried a different browser and it worked fine.

Good morning Windows 10, TB 115.11.0 32 bit. Multiple email accounts, some gmail, others like sfr, lol and free. All accounts use POP. All working before weekend, shut down the PC. Monday morning, opened Windows, all seems there except TB which has a screen with an Account Setup tab inviting me to set up an existing email address. Close that tab and the attached screen image appears, open tabs blank, no accounts pane on the left, no emails, no local folders. Nuffin. Restart TB and Windows, twice, still Nuffin. Look in Profiles, yes, under Mail all profiles appear to be present and the correct size. Going to gmail’s on line email system shews account open and receiving email normally. I had a problem a month ago after a TB update when all accounts were present but no emails were displayed. I changed the password to 0auth and recovered my emails. That took three days to resolve and I lost a business client through the delay in responding. Today I must file several court documents or I shall be in deep poo. Any suggestions how to recover the left hand accounts pane and see the accounts and folders will earn my undying gratitude.

I very very recently upgraded to Windows 11, but even though I have Firefox and Thunderbird running with no problem, when I click on an email address on a website, instead of going to Thunderbird, I get some Windows email app that I never saw when just a month ago when I was still using windows 10 clicking on an email address would bring me right to Thunderbird. How can I get Windows 11 to use Thunderbird and only Thunderbird. I am not a techie, so if you know a solution, please be as clear as possible. Thank you.

I've added https://x.com as an exception site but it is still blocked.

https://x.com/mozilla doesn't work either

Error message on the page:

"Something went wrong, but don’t fret — let’s give it another shot.

⚠️ Firefox’s Enhanced Tracking Protection (Strict Mode) is known to cause issues on x.com"

After 2 days it used to finally load without my doing anything, but not now. I never loads using Firefox.

https://x.com is added as an exception, but obviously ignored.

Tried You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.

   hold down the Shift key and left-click the Reload button   

NOPE

Tried: Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings), click the padlock icon (Clear cookies and site data) for the domain in the selected tab.

"Remove the Cookies" for websites that cause problems:

   Settings -> Privacy & Security
   Cookies and Site Data: "Manage Data" 

"Clear the Cache":

   Settings -> Privacy & Security
   Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear 

   https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox
   https://support.mozilla.org/en-US/kb/how-clear-firefox-cache 

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

   switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
   do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window 

   https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode
   https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems 

NOPE - lost all my bookmarks, extensions, settings - not going there again thank you

as for:

You can check for issues with Enhanced Tracking Protection. Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.

   click the shield icon for more detail and possibly disable the protection 

the sheild has a slash thru it saying "enhanced tracking is off for this site" when i put my mouse over it.

Since the penultimate and now the last current update to version 127.0.2 (64Bit), the button (tile with the + sign) to add new shortcuts is no longer available. How can new shortcuts be added now?

I need to connect to my employers Citrix portal tot start a Citrix session for my daily job. The problem is that when try to login using my credentials nothing happens except for the loading icon of Firefox that keeps "spinning" (see image).

When I do the same in another browser, like Chromium for example, everything works fine.

I already tried the following steps:

- Installing an older version of the Citrix Workspace app - Reinstalling Firefox - Disabling the blocking extensions

I am using the following versions of components:

OS: Linux Mint Vanessa 21 Citrix Workspace app: 24.5.0.76 Firefox: 129.0

Other colleagues report the same issues when using Firefox whether in Windows of Linux.

Any help would be much appreciated?

When sending email thru Thunderbird on PC, sentbox always shows emails sent twice (but only received once).

If I send email thru my phone, sent mail shows sent only once, so I know it's a problem with Thunderbird.

Any ideas?

Since the last Firefox update I have been unable to login to my bank's website. Attached is a screenshot of the message that appears. As a test I tried logging in with Google Chrome and was successful so it is likely something with the last update of Firefox. Note that I am using Windows 7 and do not want to change to a newer version.

Recently, my College switched to Outlook 365 mail.

I'm running the latest 64 bit Thunderbird on Windows 10.

We use OAuth2 for incoming and outgoing.

Incoming server is outlook.office365.com. OAuth2 is an authentication option. Fine. I use Microsoft Authenticator, and it works.

But, Thunderbird will not or cannot use OAuth2 on the SMTP sever, smtp-mail.outlook.com. It simply doesn't list the OAuth2 option. Even if I go back in and try to edit the server, it won't give me that option.

Other clients detect it fine.

Hi all,

Two days ago, copies of messages I send stopped being automatically saved to my TBird SENT folder. This is the case whether I send the messages to myself or other addressees.

I use Windows 10, TBird 115.6.1, and Gmail (with POP3 for the affected account).

BTW, this is not happening with an IMAP account I also use with TBird. Copies of messages I sent continue to be automatically saved to that account's Sent folder (as usual).

After researching this problem for several hours today, I've found that it's not an uncommon issue. The general advice is to navigate to Tools > Account Settings > Copies & Folders, check the Place a copy in, select Other, then point to the Sent folder of the affected account. (Alternatively, a copy can be requested to be placed in the Sent folder under Local Folders, which is actually what I've had set for many years of using TBird).

I tried sending multiple test emails to no avail. Nothing solved the problem of no copies in SENT. Despite that, every time I sent a new email, my Sent folder message count showed the addition of one more message, but no message appeared. Right now my Sent folder says there are 14 messages there, but none actually appear. The folder is empty.

I then tried several other alternative suggestions from Mozilla and other websites. Nothing works. Copies of emails I send are being saved to my Sent folder on Gmail webmail. Just not in Thunderbird.

I also tried the REPAIR option for my Sent folder. No effect. Shut down the program, re-started it, etc.

I verified that I had set TBird as an exclusion in Windows Security.

As a last resort (since this is a very troublesome problem!) I created a new "Copies" folder under my Local Folders and set the "Place a copy in" that new folder instead of into Sent. That did actually work. Copies of emails I sent after that did show up in that new "Copies" folder.

I would appreciate any assistance you can give, as I suspect my TBird Sent folder has somehow become suddenly corrupted. If so, can you suggest how to proceed. Thanks very much!

Hello !

I've been looking for some ways to import GMail takeout exported mails files that use MBox format. Googling I found some extension to do it, named "ImportExportTools NG". I've tested and it seems to have some issues : for example, after importing some MBOX files, the mails counts doesn't match GMail's values. I have not spent time to diagnose it yet...

I've also tried to simply put my MBOX files in my TB local folders and it seems to work.

Please, could someone confirm that this last trivial way actually works, and thus there's no need to any extension or tool ?

Thanks for your help.

Regards.

I moved Thunderbird to a new PC recently. Thunderbird runs fine. I want to backup the profile folder. Windows file explorer does not see the profile ; yes I have set hidden files to view. The only profile it sees is the one I copied over from old PC that has not been modified (see image). In Thunderbird, I go to troubleshoot information, Profile folder, open folder, I get Location is not available error (see image). I go to about:profiles, open folder (any, see image), get same error. Profile manager does not see the old profile from old PC. How do I make Windows and Thunderbird see and open the profile folder Thunderbird is using successfully? Thank you

I am experiencing issues with my ChatGPT subscription while using it on the Firefox browser. Despite having an active subscription with access to ChatGPT-4, the interface only shows an 'Upgrade' option instead of the 'Refer a Friend' feature, which suggests that my subscription isn't being recognized properly. Additionally, whenever I try to send a message in the chat, I receive an error stating, 'Our systems have detected unusual activity from your system. Please try again later.' I haven't encountered these issues on other browsers. Could you please provide assistance or guidance on how to resolve these problems with Firefox?"

I have tried to clear the cache, and relogin, does not work...

I am wondering if this is an issue of Firefox or ChatGPT, any resolution on this?

Hi,

I have a Mac with Sonoma. Somehow a while ago I ended up with Firefox ESR, which I was told that will not be supported after September.

I am a non-technical user. While I do have Safari and Chrome, I would prefer to continue using Firefox.

Could you please let me know the steps to execute to somehow switch from the ESR version to the current normal version without loosing settings, bookmarks or ending up with problems? Thanks in advance.

Android 14, One UI 6.0, Samsung S22+

Firefox is using a large amount of battery while idle. You can see my app runs open a lot of the day, but not in use much. It has drained 20 percent of one days battery, and I am watching YouTube videos on another app (Grayjay btw check it out!) and it has used far less battery. If I set Firefox into a sleeping state, the app still drains a lot of battery. When in deep sleep,it stops draining as much power, but then Android keeps auto pushing their own browser to be my primary browser. I'm not sure what to do in this case, as it's too much of a hassle to have links not auto open in Firefox when in deep sleep. This excessive battery drain doesn't make sense, and I was wondering if there was any fix for this. Thanks for taking the time.

The behavior began with fifteen to twenty crash messages appearing. After which the browser would stop responding and be unable to reach out to the internet.

Network connectivity was confirmed as I was able to access my VPN and corporate teams.

I submitted as many crash reports as I could. Eventually the crash reporter ceased to function. The message is:

Firefox had a problem and crashed. Unfortunately, the crash reporter is unable to submit a report for this crash.

Details: expected value at line 1 column 1

Only a full reboot of the machine restored functionality but only temporarily. It returns after being put into sleep mode.

Running firefox in safe mode does not restore functionality. The behavior persists.

I am fully up to date according to firefox.

I am running a Lenovo Thinkpad Windows 11.

Hello all I just started my thunderbird after years of outlook. And I have donated money I hope this helps to keep this alive. With recent 2FA changes I have had to move here. it is years of old emails and for now I am getting them to review later.

But everyone seems nice here.

When I am downloading I notice limits on number of messages in one mailbox in Thunderbird. One mailbox is everything inside one email username right?

Sometimes it stops at 10, 000 Is the limit based on thunderbird or the email server I am getting my emails from ???

Thank you for anticipated help!