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Just to inform the community: if you sit behind a corporate firewall protected by FortiGate 4.6, the Thunderbird from version 140 cannot send email via port 587 (STARTTLS) when the Inspection mode of the related firewall rule(s) set to Proxy-based. You must use Flow-based inspection mode! Until Thunderbird version 128.x it worked without any problem with proxy-based inspection mode, but this is not the case anymore. It took me at least 2 days to investigate this, I hope I can save some time for anybody else ;-)

Happy mailing!

Hi, I am in the process of switching email provider - from 123 Reg to Namecheap. Namecheap are very helpful, but they have run out of ideas when confronted by the latest version of Thunderbird. Can you please tell me how to go through the process of linking Namecheap with Thunderbird

I have been unable to set a Gmail email account on two of my computers, having succeeded initially on my main one. All proceeds well until I get to the point of connecting to the account and get a code 400 error message from Google. This has happened repeatedly over a week, on two separate Macs, one running Ventura 13.7.5 with Thunderbird 141.0 and the other Monterey 12.7.6 and 140.0.1. However, I can set the account up using Apple Mail on both machines! I run Integro antivirus on all machines. I have been through the process of clearing cookies, restarting etc a number of times. It seems there is a conflict somewhere between Thunderbird and Google. I much prefer Thunderbird so please help!

Hi, I am working as a freelance translator and get notifications about work from different platforms. But a few days ago I noticed that I am not receiving them anymore.

I have added those addresses to my whitelist from my provider, but the issue is still there. If you have suggestion to what the cause of this could be, I would be very happy because this is causing me to loose jobs. The addresses that are affected is: notifications@lilt.com noreply@em.lilt.com notifications@fluently.s.xtrf.eu services@lilt.com I think also all that starts with notifications@ is affected.

Thank you in advance! And just to say; I think Thunderbird is fantastic; much better than Outlook :-)

Until few days ago i could see all the opened tabs of my first phone on pc using "Tabs from other devices" option. Today i connected another phone and now i canno't see anymore tabs from my first phone. At the moment i don't have access to the first phone as i had to rapair it. Under my mozilla account i can still see my first phone connected.

The issue is very simple. When loading into the roblox website, the page becomes almost completely empty aside from the buttons at the top like Charts, Marketplace and the roblox icon at the top left. All of which do nothing when pressed.

The weird thing is that it works completely fine on an incognito tab..? Now I noticed something similar happening with other roblox's websites, where some parts of the site would break in very similar ways, but I thought nothing of it cause it didn't affect me too much. But after the new update, it extends to everything, not just one sub-page of roblox, the entire website is like this.

I removed my extensions and restarted my browser to see if that would fix anything but it didn't help.

Myself and a colleague who both use Firefox on Mac are experiencing the exact same issues.

1. Table header cells don't show their text, unless we specify a font for the table

I tried to put an example of the HTML here but it was rendered as a table by this page. I'll add some images of the code instead to show it.

In Firefox the Header cells are not visible, but in Chrome the text appears correctly.

If we add CSS like...

<style> table { font-family: Arial, Helvetica, sans-serif; } </style>

...in the header then the missing text in the THs appears.

2. Other font issues

The Wave accessibility extension has text that doesn't appear and throw errors like this in the console...

downloadable font: rejected by sanitizer (font-family: "Open Sans" style:normal weight:400 stretch:100 src index:3) source: moz-extension://b86260c9-33f6-4529-b12f-a101d8607bd4/styles/open-sans-v17-latin-regular.woff

These only occur on Firefox on our Macs. Fine on PC and other browsers on the Macs.

We tried a whole series of tweaks to settings to try fix this.

I have tried resetting Firefox and doing a fresh install but nothing fixes either issue. Are these known issues with recent Firefox releases on Mac?

Sorry. something went wrong:(

Still unable to connect to Facebook.com, all other websites are fine. Have uninstalled and reinstalled twice and still, it only shows me a page stating " Sorry. something went wrong:( " . I am able to login on other devices without any issues and am able to login on this device if i use a different browser. Whilst in trouble shooting mode, i am still Unable to access Facebook.

I have been getting this error for about a week - absolutelyu no changes have been made to my usual use of the PC and browser. There may have been Firefox/Windows updates installed. I'm not doing anything different to the usual work I do.

I have tried using a new Firefox profile with no cached info carried over, this doesn't solve the problem. I have no extensions or add ons. I do run Avast, but haven't had this problem before.

Crash report: https://crash-stats.mozilla.org/report/index/1fe71926-ad8e-4592-b103-9874f0250722#tab-annotations

NB: I do not usually get the opportunity to submit a crash report when these crashes happen.

While using Facebook, I changed some Meta setting to block ads, then unblocked it. After this, Firefox does not show any Facebook info. Switching to Edge, everything shows as normal. Can't see any setting on the Firefox settings page that controls this.

j'ai un message d'erreur qui dit :

 L'envoi du message a échoué.

Une erreur est survenue lors de l'envoie de l'e-mail : erreur du serveur SMTP. Le serveur a répondu : <unknown [2a02:8429:d0c2:ac01:5141:15ff:427:3142]:61117>:Client host rejected: Access denied.

I use google account No.1 for log in Mozilla Also I use google account No.2 When I open new tab / type request / google search give me results using google account No.2 I can`t change it. If it`s possible - please advise how

I recently transferred my Thunderbird account to a new PC and have been getting a pop-up to enter credentials for a google account every 10 minutes or so. After the pop-up is opened (sometimes in the background), no new mail will be fetched until the pop-up is closed, this is frustrating as I sometimes don't notice the pop-up so seems like I am not getting emails. The pop-up is for Google account, but my mail accounts is from MS Outlook, I don't use Thunderbird for any Gmail and I don't think this Thunderbird profile is associated in any way with my personal Google account.

This is a work computer, so not associated with my personal accounts. I dont want to put my personal Google login here and I don't know how to stop the pop-up.

The transfer was done by copying my profiles folder to the new PC, then installing Thunderbird and creating a new profile, and pointing to the profiles folder. I've had the same profiles folder for 10-15 years or more and not seen this before.

Sam

I have set up a Microsoft 365 account in Thunderbird for sending and receiving emails. Suddenly, new emails cannot be received in Thunderbird. Even when trying to send/receive manually, new emails are not received. No errors are displayed. When logging into email via the web (Outlook), I can confirm the new emails. Microsoft confirmed that the underlying cause is due to the UIDL map and UIDL history not updating correctly. Reinstalling the Thunderbird app did not resolve the issue. Could you please advise on a solution?

When I select Dark Theme, I DON'T wanr to see this. I just noticed this on my Linux Mint desktop machine tonight when I logged in. I also have Dark Reader installed and it isn't affecting ioit eitherit either. Make this go away. It burnsssssss!

Good afternoon. Yesterday I updated the Mozilla version from 135.0.1 to 136.0 and now the Firefox logo has appeared on the main screen (where the shortcuts are), thus reducing the size of the shortcuts and creating the inconvenience of having to scroll with the mouse, because before that everything fit nicely. Please remove the logo from the Firefox home page. Or tell me how I can return to version 135.01 without losing my data. This is very inconvenient, so much so that I decided to write to you for the first time.

https://support.mozilla.org/en-US/kb/how-use-virtual-card-vcard#thunderbird:win10:tb128 provides information. None of the screen shots bear any resemblance to my Thunderbird program. Account settings is nothing like the french example shown AND there is no Attachment option in the Header Ribbon. I am confused!

Why do I get a message that my Administrator is controlling my access when I AM THE ADMINISTRATOR AND ONLY USER? I used to get this on my Win 10 PC and now on Win 11! I don't know how to change settings on Malwarebytes. I got a suggestion to change the setting to use DNS over HTTPS, but it's already set there.

The latest update 141.0 (64-bit) has changed my default save location from g.drive to users//downloads. How do I change it back to g.drive? I use Firefox synced between 2 computers (1 desktop and 1 laptop). I use google drive so that I can access the same information on both devices. I NEED screenshots to be saved in a specific folder in g.drive. How do I do this. Before this update, there was not this issue. Thanks in advance.