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I am looking for a way to protect specific e-mails from being viewed from the list of e-mails, i.e. when the laptop has shut down due to inactivity and someone else opens it again and the Thunderbird window is still open. Albeit the TB password, once in the programme all e-mails are easy to view. Critical, individual e-mails could be protectes. I can do that when using a web browser for the mail provider (instead of the TB software) with a plugin Mailvelope (which unfortunately will discontinue soon). What programms could I use instead? this is NOT about end-to-end encryption, but individual protection of mails, e.g. with a password (or key) shared with the addressee alone. Any ideas or suggestions? thanks Robert

Trying to set up Mozilla Thunderbird for email use on a new MS computer. After entering data into the "Set up your existing email account" form, I get a box that says "Add Security Exception". It identifies the email provider we use with the number 110 behind it. The box warns that the certificate it identifies belongs to another site, which could mean that someone was trying to impersonate the site. What to do? Thank you.

since updating computer I cannot access e mails on thunderbird I can only access them on talktalk mail and get a warning about someone else viewing e mails and telling me to leave page

I continually get popups wanting me to give permission for TBird to access all sorts of stuff. Is this a BUG or a "Feature"?. How do I turn them off? Or should I give permissions?

Trying to install Thunderbird on a new computer, when I get to the "set up your existing email address" and fill in the information and click the "done" box. A dialogue box pops up and indicates:

You are about to override how Thunderbird identifies this site. Legitimate banks, stores, and other public sites will not ask you to do this. Location: ___________________________ Get Certificate This site attempts to identify itself with invalid information. Wrong Site The certificate belongs to a different site, which could mean that someone is trying to impersonate this site.

It then goes on asking if I want to make a security exception.

Is this a legitimate site for my Thunderbird install? I'm not very computer literate and concerned to make a mistake that could cause problems. Please help me with this as I need to get my email working on this computer. Thanks, Gary

Yesterday there was a 4 hour outage at AOL. I use Thunderbird to access my AOL account. When I discovered the outage, I check my Windows 10 hard drive where my Thunderbird emails are stored and it was empty. Not only was my INBOX empty but every saved folder, delete folder, trash folder, etc. Once AOL was operational, all of my emails reappeared on my hard drive. Everything appears to have been recovered without me doing anything. My question is: who has the ability to delete files from my hard drive without me specifically doing so either manually or through the Thunderbird app?

Hello, I've come across a rather strange problem. I have a phplist mailing list (on domain1). When sending emails, I usually also add an image (as a link to the image). Since the beginning of June, however, I've noticed that Thunderbird doesn't display the images added in this way. Instead of the image, it displays an empty frame (a completely empty frame without any tags). Even if "Allow remote content in messages" is checked in the settings. Other email clients (outlook, gmail, roundcube) have no problems and display images without any problems. However, if I put the image on another domain (domain2) and put a link to this image in the email, Thunderbird also displays it. So: it doesn't display the image from domain1, where I have the mailing list, but it displays the same image from domain2 (in the same email from the same mailing list from domain1). Is it possible that Thunderbird is blocking the display of images from a certain domain?

Recently asked by Mozilla Thunderbird for access to my data etc and this was questioned by Google. However I agreed to the request and wish to be assured that this was not a scam

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.

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

Hi I'm wondering what people think about emails providing links for donations. If the email address is spoofed and the link is malicious were in trouble. So, assuming the email I received today was from Mozilla (and not a spoofed email address, shouldn't Mozilla ask us to visit it's webpage to make a donation rather than email us a link? Regards

Hello,

I process phishing URL's,

I have recently come across URL's that make use of a BLOB: syntax on the URL:

blob:https://bolig.botik.dk/16c8c011-0fa5-4ba0-a10f-ed7675055cc6

You can see an example of the Phishing URL in this PhishTank entry:

https://phishtank.com/phish_detail.php?phish_id=9118779

That URL then re-directs to the above "BLOB" URL.

My understanding is that it is "locally" generating the phishing website, similar to an old fashioned about: syntax, however it's not clear what the significance of bolig.botik.dk URL is - loading that URL without the BLOB: prefix causes an error

Can someone explain:

1) What is the BLOB: syntax, and 2) what would be reported to have the phishing URL removed in the above example?