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Hello. I am trying to send emails from Thunderbird 128/140 for Linux via Exchange Server 2010 via SMTP. SMTP authorization is performed using Kerberos/GSSAPI, without connection encryption (Connection security: Note). An error occurs when sending: "Sending of the message failed. The Kerberos/GSSAPI ticket was not accepted by the Outgoing server (SMTP) test.domain.name. Please check that you are logged in to the kerberos/GSSAPI realm" Error console: mailnews.smtp: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIMailAuthModule.getNextToken]

   getNextGssapiToken resource:///modules/MailAuthenticator.sys.mjs:117
   _actionAUTH_GSSAPI resource:///modules/SmtpClient.sys.mjs:1145
   _onCommand resource:///modules/SmtpClient.sys.mjs:605
   _parse resource:///modules/SmtpClient.sys.mjs:402
   _onData resource:///modules/SmtpClient.sys.mjs:459

SmtpClient.sys.mjs:1147:19

mailnews.smtp: Authentication failed: AUTH GSSAPI SmtpClient.sys.mjs:784:17

   _onAuthFailed resource:///modules/SmtpClient.sys.mjs:784
   _actionAUTHComplete resource:///modules/SmtpClient.sys.mjs:1185
   _actionAUTH_GSSAPI resource:///modules/SmtpClient.sys.mjs:1148
   _onCommand resource:///modules/SmtpClient.sys.mjs:605
   _parse resource:///modules/SmtpClient.sys.mjs:402
   _onData resource:///modules/SmtpClient.sys.mjs:459

IMAP with Kerberos/GSSAPI is works correctly. Evolution works correctly with the same SMTP settings (it logs in and sends emails).

Hello, when using a dropdown list that is connected to an external source (excel on the cloud), firefox on android does not offer us options. It works in other browsers. Ideal worked in Opera. Where is the problem with firefox?

Best regards Minárik

No matter what I do all I get is this: Login to server imap.gmail.com with username smyn1118 failed. and: Unable to log in to server. Probably wrong configuration, user name or password. Any ideas? ....... Sam

I have bookmarks in Firefox (Android) nested several layers deep. Every time I tap the Bookmarks menu item, I am sent to the top level Bookmarks folder, where I then have to tap through several layers of folders to return to the place I was just at. It is maddening.

Is there an option to return to the last Bookmarks folder I viewed? This seems like a basic usability feature. (It's certainly a feature in Brave for Android.)

1. Thunderbirdportable 139.0.2: Nearly all emails work well. But the attached email doesn't present the inline pictures well. I tried outlook, foxmail, emclient and all worked very well. But TB cannot do it.

2. ThunderbirdPortableLegacy52_52.9.1 Other emails look good. Suddenly received the new email and it becomes plain text. Checked inbox online and tried emclient/outlook and all display the email in html. It also works on Thunderbirdportable 139.0.2. Really confused...

Due to the lack of a suitable topic related to “print” options, I can only choose the topic related to persistence, "Download and Save."

The first image is part of the original webpage, where one of the buttons is selected.

However, in the print view (the second image), the selected state disappears.

I have switched across multiple devices, various versions of Firefox, and several different printers (MS Print to PDF or physical printers), and this phenomenon consistently occurs.

Firefox is my daily browser, but in order to print similar financial approval forms, I have to switch to Edge or Chrome to complete the task.

I hope Mozilla's excellent engineers can locate and fix this issue.

Thank you.

I keep getting notifications, supposedly from Mozilla and/or Microsoft on lower right of my screen, telling me the system is infected. How do i determine if these messages are valid, or a scam ? Turned computer off and back on--messages keep popping up.

Hi, the latest nightly version crashes everytime on my Pixel 8 Pro. Clearing cache, force stopping and restarting the phone doesn't help.

version 141.0a1 org.mozilla.fenix

When using the UBLOCK ORIGIN extension i cant Join the app. i need to turn it off, then I can join the Firefox nightly. I need help because I use this extension so much.

I have a problem. When watching videos on YouTube, especially in 4K, it starts to freeze, and the loading screen stays on indefinitely. The same thing happens when you fast-forward or rewind the video. Switching the video to 1440p or 1080p helps, but over time, even at 1080p, it starts to freeze. but if I switch back to 4K, everything works fine, but only temporarily or until I fast-forward it.

I can provide browser data files. I'll say right away that I've tried a lot of things, and even everything that ChatGPT recommended didn't help. I tried changing the about:config settings related to the video player and codecs.

The only thing that helped was installing a plugin (h264ify by erkserkserks) that disables av1, and in that case the video works fine, BUT only at 1080p, which doesn't suit me, as I would like to watch videos in high quality.

If I disable hardware acceleration so that videos are rendered on the processor, then everything works fine and everything runs smoothly, except that the processor is loaded at 60%. This may be a solution to the problem, but I would like to figure it out and solve it completely, rather than looking for a compromise.

Motherboard: ASRock B850M Pro-A (BIOS date 02/21/2025, DMI BIOS version 3.20) CPU: AMD Ryzen 5 8400F 6-Core Processor RAM: Crucial CP16G60C36U5B (Crucial 2x16 - 32GB) Video card: NVIDIA GeForce MSI RTX 3080 Ventus 3X OC LHR (MS-V389) (Driver version: 32.0.15.7652, Development date: May 14, 2025, DirectX version: 12 (FL 12.1)) Video card driver 576.52, May 19, 2025 The entire system and browser are installed on an M.2 NVMe CT1000P3PSSD8 SSD (Crucial P3 Plus 1TB PCIe 4.0 x4) (there are also other drives) (2 monitors 1440p) Windows 11 Pro If any data is required, I can provide it. All drivers and everything else are installed in the latest version (unless new ones have been released or it has not updated itself). All Visual C++ and Windows components are installed, I don't think there is a problem with them.

The problem only occurs in the Mozilla browser; there are no problems in any other browsers. I also noticed that on some websites where I watch movies, there is a problem with the video. Unlike YouTube, they load normally, but in dynamic scenes, the image breaks up, similar to the image breakup in games when vertical synchronization is turned off. That is, the video is divided into two parts, and one of them lags behind by a fraction of a second. I tried resetting the browser settings, but it didn't help. Everything works fine on my MacBook and in other browsers and devices, so it's not related to the internet.

Please help me figure this out and solve the problem because I've already tried everything, and I don't want to switch to another browser because I've been using Mozilla for over 15 years. Also, if you need any information or a detailed explanation, I can show you or even record a video. Everything worked fine on Windows 10 on the same system, but Windows 11 is not running as smoothly. (To clarify, this is a clean system; I did a complete clean install of Windows 11, although when I upgraded from 10 to 11, everything seemed to work fine).

I would be grateful for any help.

When i click fullscreen on a youtube video, it does not go full screen, the video goes to the top of my screen but does not grow and fill the screen. It has been like this for 2+ years

Hello, we are facing an issue like unable view the emails. Resulting in blankpages.

Same issue happened last month also.

Current version - 139.0.2 and the we are using UNC path.

Any advice would be helpful!

Edit : currently we have downgraded to the thunderbird version 138.0.2 and we are able to view the emails.

Issue 1: When using Shift+F5 to Get All New Messages: This command used to go through my accounts within several seconds; but now this can take several minutes. What changed to cause this?

Issue 2: I have one account that is having server problems... causing must click popups in TB. How do I exclude this account when using Shift+F5? I've tried Unchecking the boxes for "Check for new messages at startup" and "Check for new messages every xx minutes". And one help result suggests "Disable immediate notifications: Uncheck"; but I do not see such a setting.

I had to re-installed from 0 my windows. I was sure my Firefox account had all my passwords and logins because I had problems in the past regarding this. Installed Firefox into my new fresh windows. Hit the Sync bottom. Lastly, remove the old Firefox account login from old windows (for safety).

Now I checked password, 0 passwords saved.....

I am trying to re-sync but nothing happens...

I have not changed any settings related to fonts in firefox (running on windows 10 desktop), but I have this issue where flag emojis are displayed as a letter code on the page itself, but still display correctly in the tab at the top. is there a known fix for this?

Google suggestion in Firefox's address bar keep showing Japanese suggestions even though I chose English and Canada as language and location with my google account.

I use same google account with google chrome, but google chrome doesn't show Japanese suggestion.

As for setting on Firefox, I unticked other than "show search suggestions".

How do I resolve it?

Thank you.

Clearly your crappy browser system won't stop crashing my tabs with its stupid updates randomly out of no where while I'm in the middle of working on something. I can't even report bugs in games anymore because I go to pastebin to post a crash log, and firefox decides to say 'RESTART FIREFOX TO CONTINUE USING' for no reason. I am very angry, this happens so often its ridiculous. I have updates set to "check and choose" and yet your browser keeps crashing all tabs all windows telling me to restart to continue using, and only today did I realize it said it was related to an update. This is unacceptable behavior. This browser is becoming unbearable. Crashing/updating in the middle of my work is very bad, and this is getting old. Obviously this time it was an unwarranted update, who knows if my browser has even been crashing at all. Just keeps getting disabled for your forced updates. I need them disabled, NOW. I choose when to update. NOT YOU.