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Created new yahoo mail IMAP (PKCE) account using Thunderbird account creation. All seemed to work well. However, new account does not receive mail from "some" other IMAP and POP accounts in testing, including from TB Pro. Strangely, mail sent from oldest POP accounts works. Mail from newer POP gmail and TBPro accounts is not received. TB 149.0b1 Windows 11

hi today thunderbird started showing yahoo popup login and after adding credentials i always get "something went wrong.We could not sign you in. Try again from a different device." Also popup once closed it opens instantly.

i can sign in normally from browser. thunderbird version is 147

is there any fix about this?

thanks for any help

regards

I have an outlook work email account in Thunderbird. Now I need to add another for a charity role. The first/work one is fine, but I can only receive emails on the second/charity account. I've tried different setting for the outgoing server but I don't really know what I'm doing with that - can you help please? Thank you.

There is currently no setting in the Thunderbird calendar for a recurring date on the "last workday" of each month. This is very necessary for certain recurring dates, such as payments issued online monthly on that date.

This function is included e.g. in the Nextcloud calendar app, but not in the Thunderbird mail calendar.

Is this something coming soon?

Thank you very much.

When using Firefox to access certain sites on this laptop such as Marriott.com, United.com, AA.com and Spirit.com, after I login and start a search I get an Access Denied message. However, when using Firefox on another laptop I am able to d a search for a reservation on these sites. This leads me to believe a setting on this specific machine has been changed and I do not know how to correct the situation.

Access to the above sites works without any issues on Chrome or Edge.

Warning: Potential Security Risk Ahead

Firefox detected a potential security threat and did not continue to na.nikken.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

What can you do about it?

Probably nothing, since it’s likely there’s a problem with the site itself.

The site is ok when I open on another window and even on Google which I don't like.

I cannot get the bookmarks toolbar to show "Other Bookmarks" on the right end of the toolbar. When I right click on the toolbar, the option to "Show Other Bookmarks" is greyed out.

I completely uninstalled Firefox, deleting all residual files and registry keys, then reinstalled the software, and it hasn't fixed my issue.

I cannot find any support forums or articles that have provided a solution.

Since the up date my yahoo and AOL account want me to enter the password. When i do it is not accepted. It is correct since i tried it on a friends computer. I tried to use forgot password and it says I should enable java script and turn off ad blockers. I cannot do this in Firefox nor do I think it will help.

Here is the message I get when trying to access Kroger's website (and a few others). Access Denied You don't have permission to access "http://www.kroger.com/" on this server.

Reference #18.2ba42617.1772484744.8c597d44

https://errors.edgesuite.net/18.2ba42617.1772484744.8c597d44

This does not happen when I use edge. I have tried numerous fixes that I have found on line but none have worked. I

bold text "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… "

i show this problem please solve this .

I am having trouble signing into some of my web sites. This problem just started. I have tried everything even uninstall and re-install. Nothing works. What do I need to do?

I cannot access my xfinity account due to my anti-virus (Eset) blocking Firefox's access to assets.xfinity.com

Hi, for about the last week (23 Feb 2026) when watching videos in my Firefox Browser, there are short stutters. First noticed in Youtube, so looked for updates to UBO and other extensions. Then noticed the same thing in BBC iPlayer and my4 streaming. It also happens when watching my media via Plex in the browser. It is not my network bandwidth or speed.

When I watch media via my Plex app or videos on VLC media player, there is no stutter.

I have included a link to logs recorded in Firefox profiler as suggested by someone on Reddit. firefox_profiler_2March26 https://share.firefox.dev/4b4moC0

I don't know if this is caused by a Firefox update, a Windows update. Laptop: Asus ROG Flow X16 (2023); Intel i9-13900H, Intel Irix Xe; NVIDIA RTX 4070 (mobile) Firefox 148.0 (64bit)

All drivers up-to-date. Please let me know if the link does not work - my first time trying to upload a link from profiler.

Thanks all.

I use Firefox as my desktop (and phone) browser. Recently my desktop cannot open my USBank Online banking service (my Android Firefox phone browser works fine). The USBank customer technical service agent tells me that their software does not recognize the Firefox browser - he says that AVG Secure, Microsoft Edge , and Google Chrome work fine). How do I rectify this without changing browsers? I've used Firefox for opver a decade without trouble. Help!

I received an email on 02/25/2026 that was a egift card from a local small business. The egift card was from with Square account. When I went back into my inbox the next day to use the egift card, the email was gone. I looked in all my folders and didn't see it anywhere. How can an email just disappear? When I contacted the small business, they said they can't honor the egift card without the 16 digit # on the egift card. I showed them the receipt for the purchase but it doesn't not show the 16 digit code for the ecard, only shows the purchase of a gift card. So how do I find this email with the egift card?

this was the email address from the purchase invoice. noreply@messaging.squareup.com

I don't recall the actual email address the egift card was from other than I saw it was from a Square account.