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Thunderbird 148+ on Windows 11 repeatedly prompts for the password when synchronizing an Exchange account (professional) configured with the native Exchange support (no add-on installed).

The account only offers “NTLM” or “Normal password” authentication methods. OAuth2 is not available in the account settings.

During synchronization, Thunderbird asks for the password separately for many folders. However, clicking “Retry” usually works immediately without changing the password, and manually re-entering the same password also works.

The issue then reappears for the next folder, causing continuous authentication prompts (I have many folders...).

Actions already tested:

• deleting saved passwords and tokens,
• deleting/renaming key4.db and logins.json,
• restarting Thunderbird,
• recreating the account.

The problem persists.

This looks like an authentication/session handling issue rather than an actual invalid password.

[6/12/26, 10:49:22 PM GMT-4] Applied filter "Blocked Sender List" to message from The Home Depot® Consumer Credit Card <citi@info15.citi.com> - James, Don’t forget to use this special offer to get your Summer projects going! 🌼🌺 at 6/12/26, 10:02:27 PM GMT-4 deleted

[6/12/26, 10:49:22 PM GMT-4] Filter action failed: "Move failed" with error code=0x8000FFFF while attempting: Applied filter "Blocked Sender List" to message from The Home Depot® Consumer Credit Card <citi@info15.citi.com> - James, Don’t forget to use this special offer to get your Summer projects going! 🌼🌺 at 6/12/26, 10:02:27 PM GMT-4 deleted

The sent message is deleted but I get Filter action Failed.

Google Lens type camera in mobile and pc search engines and browsers. I got on my Android phone Firefox browser shortcut and Google's, Googles's has a camera next to the mic than when you click it it gives 2 options to take and analyze, search photo, or use for same reason a photo from gallery. Will Firefox ad this type of feature on mobile and pc? And the magnifying glass is ai search.

I want to be able to make voice and video calls via facebook messenger using my PC camera and microphone but, the message I get is that "voice and video are not supported on this browser (Firefox/Mozilla) . It is supported on other browsers. I really don't want to switch browsers, I love firefox. I did find a couple possible fixes via advanced WebRTC settings but everything seems fine, i.e. it is clicked on true not false. I need this soon, can we get settings changed?

I fill out a lot of forms online and use Firefoxe's autofill to fill in my personal info.

The problem I have is that autofill always puts a +1 in front of my phone number on the forms.

Since the form is only looking for 7 digits, it chokes with the +1 and won't submit. This requires me to manually click on the phone number field and delete the +1 so the form will submit. With the amount of forms I fill out, this creates a lot of unnecessary wasted time constantly having to correct it.

I have tried editing the phone number in autofill to remove the +1, and although it appears to do so, as soon as I save it, it comes right back again.

Is there an about:config setting that will remove this? I don't know why Firefox thought this was a good thing and not allow a way to edit it out.

Thank you for any replies

Firefox is up to date, Windows 11.

I frequently watch BBC videos but approx one week ago, they stopped playing. I have your VPN which is usually off as it give me no advantage, (this appeared following the last update), but I've tried switching on and changing to UK location. No change.

Can you give me some suggestions please?

Hello,

Since this morning, I haven't been able to access Bsky on my laptop because of a supposed HSTS risk, which means I can't add an exception to visit it. I use Firefox on my Android and going to the mobile version of the website lets me in no problem, so I assume there's an issue with my laptop.

I'd usually wait a few days and let it solve itself but just in case it's something on my end, I'd like to solve it! I'm on 151.0.4 (64-bit), don't use a VPN or an anti-virus, I have a couple of privacy add-ons but they've been here forever and they've never caused a fuss. I can post a screenshot of the error code and the certificate it sends me if it's any help.

I'd appreciate any pointers! Thanks!

MacOS, M2 2023, fully up to date firefox.

Sometimes I'm using firefox and it just stops loading pages, internet is fine. Other browsers work. I look at my activity monitor and nearly 100% of my 32GB of ram is being consumed by various firefox processes. A lot of those processes seem to be associated with youtube. This problem usually, but not always, is resolved by restarting firefox. But this shouldn't be happening. I have a lot of tabs open sometimes, but it's not that excessive. And most certainly not 32GB worth and preventing my computer from doing a google search.

If there's a debugging thing I can do to post system logs, let me know and I'll post them next time this happens. I'll be away from my computer until early July, so around that time.

On android phones, you can disable the gesture hint (white bar at bottom of screen). Other apps I have tried while having it disabled have no issue. With Firefox however... when gesture hint is off and i swipe up from the bar, my finger is technically swiping at the address bar, which (aside of sending me to home - because that's what the up gesture does on the bottom) opens the tab switcher.

I have explored every option and find it is the latest FF update that has effected the web performance of both my Desktop and laptop. Both are running Windows 1O. Incredibly slow connectivity and some sites either time out or simply won't connect. Very frustrating. Please advise. Tks

How to use samsung pass to fill in passwords and addresses instead of using Firefox fill, i have a ton of passwords in samsung pass. But i want to switch fully from Chrome to firefox, when i was using chrome it had an option to use samsung pass in settings how can i do that in Firefox?