All Products Community Forum

I can receive mail fine. Cannot send mail on gmx.co.uk acct, but gmx.net works on oauth2. But oauth2 is missing on gmx.co.uk It's just not on the pulldown. I tried a new thunderbird acct for gmx.co.uk but oauth2 is still missing.

I use Firefox as my default browser, and I like it very much.

Problem: I received an outlook email with a link to a Docusign envelope. The link would not connect with Docusign.

Work Around: When I used another browser, Microsoft Edge, the link opened up right away.

Additional Information: I use another digital signature program, Dotloop, and it works without any issues on Firefox.

Question: What can I do to make sure that Docusign works properly on Firefox?

Thank you!

Can get(POP3), but can not send emails to a newly created personal outlook.com account.

the following error occurs when trying to send mail: Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)

all my setting are correct per thunderbird and microsoft:

  (smtp-mail.outlook.com, port 587,  STARTTLS, OAUTH2, xxxxx@outlook.com)

thunderbird error log file contains the following: . . . mailnews.smtp: S: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox. Visit https://aka.ms/smtp_auth_disabled for more information. [CH5P220CA0005.NAMP220.PROD.OUTLOOK.COM 2026-02-28T23:29:21.878Z 08DE7703D4D1982A]

SmtpClient.sys.mjs:452:17 mailnews.smtp: Command failed: 535 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox. Visit https://aka.ms/smtp_auth_disabled for more information. [CH5P220CA0005.NAMP220.PROD.OUTLOOK.COM 2026-02-28T23:29:21.878Z 08DE7703D4D1982A]; currentAction=_actionAUTH_XOAUTH2 SmtpClient.sys.mjs:578:19 mailnews.smtp: Error during AUTH XOAUTH2, sending empty response . . .

Based on my understanding its seems thunderbird is using SMTP AUTH instead of OAUTH2 as required for newer personal outlook.com accounts. Is my assessment correct? If so, is there a fix?

What seems like ages ago Firefox stopped displaying bookmarks I addition it would not add new bookmarks nor restore the existing ones. I've gone through all of the corrective procedures listed on and off but nothing works. As a final attempt I deleted the program and reinstalled it. No change. It seems to me that perhaps a missing file from another program or system is missing. Maybe!

I have been using an alternate system for some time. When installed it had no problem finding all of the Firefox bookmarks and placed them on the menu bar as "Firefox Bookmarks". I have no issues with using them but all new ones are stored in the current browser. Thus the new ones do not go into the folders previously set up. I've avoided moving them manually to the new system due to the volume but I am ready to bite the bullet.

I prefer Firefox but it's just not working.

Can anyone save Firefox for me.

Secure Connection Failed

An error occurred during a connection to chatgpt.com. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more… this is what it says when i try to access

Since updating Thunderbird 64 bit to v147.0.2, then to v148.0 (1st March 2026, just now), requesting the display of 'Unified Folders' (in Folder Modes) does not populate the unified Inbox with messages from any of my eight registered email inbox sources. The individual inboxes with their contents can be displayed below, but not in the unified Inbox.

Since being introduced several versions ago, I have found this feature very useful when checking my various received emails, and it is frustrating to be without it.

Can anyone suggest what I may or may not be doing to get this feature to work any more? I have been all through Settings, but cannot find anything relevant to this problem.

Cheers, Sam

Suddenly I cannot search from the search bar. It defaults to the address bar. why "fix" something that was not broken. Being forced to use the address bar is frustrating. If you go directly to the address bar, it tells you it cannot find that site.

Hi,

I’m experiencing an issue with my website Fixit Home ([[Interior design and fitout company|https://fixithome.ae]]) ). Certain pages and elements, including images, navigation, and layout, are not rendering correctly in Firefox, even though they work fine in other browsers like Chrome and Edge.

I’ve checked:

The website code is valid and loads without errors in other browsers

SSL certificate is active and pages are secure

JavaScript and CSS files are loading correctly

Could this be a Firefox-specific compatibility issue, or something related to caching, security settings, or mixed content? I’d appreciate guidance on how to debug and fix this problem so my site works consistently for Firefox users.

Thank you!

Version 148 recently installed as auto update and problem seems contemperaneous to that.

My Home page is set to show only the Firefox "search the web" as an entry box in the screen centre, but will no longer allow any input: instead the awesomebar (aka address bar) shows on the tool bars at top of screen and accepts/displays the entry. I wish to revert to the simpler display.

I thought the solution lay within the advanced preferences that can be accessed (via app:config) and the value of the awesome bar changed. However tthe awesomebar preference is the only one shown for which there is no setting at all. Edit brings nothing up. There is a delete bin symbol available.

Can anybody explain what is going on and how to rectify this situation, please?

I hope this is ok to post here.

My windows MSN app says this. When I select '"Open in Browser", this happens.

However, when I select "Video Hub", it works normally.

I tried clearing the cache and cookies. Reset. Uninstalled/reinstalled. I can separately access the website on Firefox.

В полученном письме с почты THE AHMAD TEA STORIES d.gorshunova@sdc-foods.ru, у меня не отображаются картинки - показывает значок разбитого изображения в верхнем левом углу. От других адресатов картинки загружаются. И в других браузерах все картинки с этой почты показывает. Пожалуйста, почините!

I posted this question some time back but didn't receive any helpful answers and don't know where my post is. In the upper right-hand corner there is suppose to be 3 symbols. One to lower the app, one to make the app full screen or partial and one with an X. I have jumbled symbols where the 3 good ones are. It does it in trouble shoot mode. I tried disabling addons but I can't get the normal symbols back. Here's what it looks like... Thank you for any help.

When I use picture-in-picture for any video, all of my firefox browser windows go unresponsive. I can move the cursor around, but it won't allow me to click on anything. The only way to stop it is to open a brand new window which makes it responsive again and then close out of the PIP video. Sometimes it lets me go back to using the browser as normal, and other times it causes all firefox windows to crash. I'm using Windows 10. This issue only began happening about 10-ish days ago.

The Crash Report IDs are: bp-42f92617-671a-4e30-9d32-e1def0260302 bp-64cb35b0-5ab7-4b9d-8a80-7d2470260302