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For a long time, while the Number Lock light is "on" on my keyboard, Firefox does not recognize that it's on. This should be a basic binary. 0=0, 1=1. 1 should never equal 0.

I have to got into another program and type numbers there to get it to work. But it doesn't last. I hate it when I'm trying to do something quick and I have to fight with something that I should NEVER have to fight with.

How to I get Firefox to ALWAYS recognize that Number Lock is on when it is on?

Hello community,

i would like to ask about how to deploy security.pki.certificate_transparency.disable_for_hosts globally for users? With version 135 a lot of production webapps stopped working and as of now , we have to do manual modification in about:config. Our company has over 300k users , so the possible disruption might arise very quickly and there will be significant loses in production enviroment.

Is there a way how to deploy this specific setting via GPO/SCCM ?

Thank you

Few questions - I have made a number of attempts to set this up.

It did not automatically connect the first few times I tried. So I read the info on how to configure manually, but I could not locate the info within my protonmail account to do this. I made another attempt and now this message comes up:

"You are about to override how Thunderbird identifies this site. Legitimate banks, stores, and other sites will not ask you to do this." (See image below.)

What do I do?? I am concerned about messing something up. It didn't give me an option to configure manually this time.

Appreciate any help I can get.

Thanks, Anita

Hi! Yesterday, an amout was withdrawn from my bank, see the notification:

POS 21.90 BGN THUNDERBIRD EMAIL SAN FRANCISCO USA 724447

As I don't remember authorising, or ordering this payment (I like to surf alot and not always remember what have done)qplease check and inform me : 1. Is this some subscription I may have done? If so - what it is as Thunderburd is suposed to be free app... 2. Is somebody using my account or Card, so I nees to change access details? 3. Or it may be some subscrition made through Thunderbird?

Please, help! Plamen Gogov pgogov@gmail.com

Hello,

Our organization is attempting to implement a Conditional Access policy that restricts access to certain websites to Intune joined devices only. The error message mentions that I need to enable a setting from within Firefox called Windows SSO, mentioned here: https://support.mozilla.org/en-US/kb/windows-sso. This setting is already enabled and I am still getting an error.

Is there anything else that could be causing this?

My provider uses IMAP, not POP3. I am transitioning to a new computer. My entire work and personal emails over the last 10 years are on this computer. A loss of emails would be really, really bad for my work. I use my Thunderbird account on two devices: a main laptop and a small travel laptop. It's nice to have them synched, but not essential due to limited use of my travel laptop.

Currently all of my old emails are in IMAP folders on the new computer. My questions:

(1) Which is better protected from loss of emails, IMAP folders or local folders? On the one hand, I occasionally destroy a computer by doing something dumb like spilling water on it. But does it ever happen that a provider permanently loses emails, like a major server crash?

(2) To what extent is loss of privacy an issue with IMAP storage folders? Is there any history of privacy incidents with IMAP folders?

(3) If I move emails from IMAP to local folders and then delete the IMAP folders, will my emails be permanently saved in the local folders? I did an experiment and the answer seems to be yes.

(4) Considering the above questions, is it best to store emails in IMAP or local folders? Is there any significant difference?

I am getting an annoying popup stating that Dan.Hromada@citizensforfreespeech.org is asking for my Google password....this email account is not associated at all with Google or Gmail. It's hosted on the organization's server. Please see the screenshot of the pop-up.

Thank you, Dan Hromada

Context: Windows 11 23H2, Thunderbird Portable (102.15.1, stubbornly declining updates until the Supernova IU starts looking tolerable), Avast Antivirus. Multiple email accounts on various servers, all POP3.

For the last several months (not sure when it started, but I first took a screenshot in October 2024, so perhaps that was the first time), after each time I reboot my PC, the first time I send an email using one particular account will trigger a complaint about a bad certificate, which is probably caused by Avast getting in the middle of the process. Clicking "View..." opens a tab with certificate information. I'm attaching screenshots.

I assume my other accounts also had a similar complaint when they were first used, but it has been a long time since I added a new account and they are all quiet now. But on this account, I get it the first time I send mail (normally a reply to someone else - this is not my default account for new messages) after each reboot. When I click "Confirm Security Exception" with the "Permanently store this exception" checkbox checked, the next thing I get is "Send Message Error" (see the third screenshot), then I click OK, and then I can hit "Send" again and the message is sent with no complaints. Then I can also send future messages with no complaints until the next time I reboot. (I don't reboot often - normally just when Windows needs to do an update.) This is the only account on Dreamhost (others are InMotion or Google), but other than that, there is nothing special about it, as far as I know. Why is it forgetting my "permanent" exception? Is there a setting somewhere that I should look for?

I just now tried following the instructions on this page: https://support.avast.com/en-us/article/troubleshoot-invalid-antivirus-email-certificate But it says, "This certificate is already installed as a certificate authority." Perhaps that is because I have already gone through the process for this reboot cycle, but if TB needs a new Avast certificate or exception each time I reboot (due to something changing in Avast, perhaps), I'd think the first email I send through any server would ask for the exception, but it's never any other account - just this one Dreamhost one. Fortunately it's just an inconvenience, not a showstopping problem, but it would be nice to solve it eventually.

I seem to have found a fake Firefox phishing website. The content of the website is in Chinese and it is included in Google search.

The fake websites are cn-firefox.com and www.firefsioix.com, I hope the community members can confirm the website information.

I could not access this website https://sevasindhuservices.karnataka.gov.in/home.do why please help me

02 Oct. 2025

Recently, some automatic updates were made to my Dell desktop. I assume they were updates to the Windows 11 OS.

The updates also caused some changes to my Thunderbird e-mails. The incoming e-mails are formatted differently. I used to get a message, saying that "remote content" in some incoming e-mails had been blocked. I was given the option to show remote content in the incoming e-mail. Now, I no longer have the option to "show remote content".

Please tell me how I can recover the option to "show remote content" on incoming e-mails.

Thank you.

Connie Yanicka

cyanicka46@gmail.com

Hello,

I have saved message templates that I use. Each one also has a footer (which I save as an .html file).

When I use this template to send a message, the image in the footer doesn't load and I get the message: Thunderbird has blocked the file from loading in this message.

When I click UNBLOCK, nothing happens. The image still doesn't get added. It's a very small image from my footer/signature. 'When I compose a new message, I don't have this problem' – the image in the footer loads and is sent to the recipient. This problem occurs when I try to send a message saved in the templates. There's no way to "unblock the image" and send it.

Today is 01.16.2026 Hi Volunteers, thank you for the service you are providing Thunderbird users.

I didn't see a topic called Security, so I chose Settings.

For Thunderbird version 146, what specific version of LDAP is being used?

Regarding which LDAP version is the most up to date, I found this: https://pkg.go.dev/github.com/go-ldap/ldap/v3@v3.4.12

My concern is about LDAP's security. I believe it is reasonable to think that the latest available version of LDAP would have the latest and most up to date security patches applied.

I would like to feel secure knowing I have the protection of the newest version of LDAP which affords the best security protection available for Thunderbird laptop version 146.

However I have been unsuccessful in determining if Thunderbird 146 is using this LDAP latest version. Could you help me learn if Thunderbird 146 is utilizing the latest version of LDAP that is available? Thanks in advance.

Yes I know I am a bit verbose.

I have no interest in it and view it as a security risk and liability. I've been using Firefox for over a decade, every since I realized how horrible Google is. Why the heck would Mozilla do this?

This is not the first time you have sent an email to me indicating I should "View all sites where your info is exposed", and each time I receive your emails the sites you suggest are sites I have never seen before, let alone logged into with a password.

I use a Password Organizer Book, with all of my logins and passwords for each site I use. I do not use a password app, and have NEVER used a password app. Each time I go to the website you suggest, It's always a site I have never seen before so it would be impossible to login and change the password. I always check my Password Organizer Book to make sure.

I don't know what you want me to do since I cannot login to the website you are suggesting. Is there action I should be taking? I don't know what it would be, but if you know please let me know.

I don't know what happened I was just doing my normal stuff then all of a sudden I get a virus notifications from Firefox I had did a verification that I'm not a robot after that that's when the virus notifications started can you see if you can do a virus skin for me that will be amazing if you can do that.