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A couple of months ago Thunderbird installed a new version (150.0.2) that made me enter a new identity. After I did that, I tried importing the e-mail folders from the earlier version (139.0), but totally without success. So I tried re-installing an older version, but this also, was no longer able to import the folders stored on my hard drive. What can I do????

I have been having a reoccuring problem signing into Apple / icloud accounts. Basically, it won't let me login even though the password is correct. There are several ways to fix the problem, you have to try each one since there is no consistent way to fix it.

1. Sign in using appleid.apple.com instead of icloud, which seems to work better.. 2. Clear site data for apple.com and icloud.com, which sometimes work. 3. Clear all browsing data, if the previous step doesn't work. 4. Create a new profile if the previous step doesn't work.

The problem is that the problem comes right back in the next login. No fix seems to last more than a few days. It's not an extension issue since the problem occurs even with extensions. It's not using standard tracking and ublock if enable is off for the apple domains.

Anyone has an idea what is causing this? There are no issue signing in using chromium based browsers. The issue has been around for a year now.

How can I suppress a recurring pop-up in Firefox that claims my computer is infected with a virus and it instructs me to download McAfee Antivirus to clear it out. I've done multiple scans with my Norton Antivirus which showed I had no viruses. The fake pop-ups appear to be coming from Firefox.

As of this morning I am no longer able to download or send email via my Spectrum email account. A warning message appears next to the account name reading 'The certificate for mobile.charter.net:993 does not come from a trusted source.' The section from the View Certificate page makes it seem like the certificate should be valid:

Issuer Name

Country BE Organization GlobalSign nv-sa Common Name GlobalSign RSA OV SSL CA 2018 Validity Not Before Tue, 19 May 2026 11:45:30 GMT Not After Fri, 04 Dec 2026 11:45:30 GMT . Spectrum of course says it's an issue with my email client. Adding an exception for mobile.charter.net does work, but that doesn't seem like a good long-term solution. When I attemt to get a certificate for the server, I get a 'No Information Available - Unable to obtain identification status for this site'. I am not using a mail scanner and my only anti-virus is Windows 11 built-in Virus & Threat Protection. Any help or suggestions would be appreciated, thanks.

On Windows 10 Home I've been using Yahoo Finance to track stocks. After updating FF last week I have not been able to load graphs. I've tried refresh, reload, restart, remove cache but any graph shows "loading" or is blank content. Every idea except delete FF and reinstall. Other browsers I sometimes use do load the graphs no problem. What else can I try, or is this a bug? Thanks

We have used mobile.charter,net for our emails since we signed up for your product. Now my husband gets the mobile.charter.net "certificate is not from a trusted source" error when Modzilla is retrieving emails. I have the same email provider, and do not get the error message from Modzilla. Can you help us correct this problem?

I just bought a new desktop computer. It is a Lenovo using Windows 11. I downloaded Thunderbird (.exe) and attempted to install. The installation program does not recognize my credentials. I get an error message that says "Authentication error. Unable to log in at server. Probably wrong configuration, username or password." I have tried every variation I can think of, but no luck. I enlisted Best Buy Geek Squad, and over 2 hours later they have determined that the computer itself has no problems--it is Thunderbird that is refusing to recognize my credentials. I have 4 other devices--2 Iphones, an Ipad, and a laptop using Windows 10, and all have been, and still are, using Thunderbird with no issues. How do I get Thunderbird to recognize my credentials, which are valid on 4 other devices?

After system complete reinstallation Ubuntu 24.04 it is not possible to send mails with SMTP Server. Receiving messages is possible!! Two fault Messages happen, I've two SMTP servers: 1. No connection to SMTP possible 2. Server timeout

And yes, I've checked nearly everything what's to find in the internet, reinstallation, change and check settings and passwords, together with the specialist from my provider. Also my provider is not able to find a mistake. As I've found out in the net, there are sometimes problems to connect to SMTP, but no solution found. Is there some security in the UBUNTU system, which blocks the SMTP connection or is this a bug from Thunderbird? Thanks in advance Andreas

When opening a new window on firefox I see a "homepage" (No URL offered at the top of the page), offering some helpful, frequently used shortcut icons followed by a number of headings, i.e. : Popular Today, Connections, Featured Videos, etc., providing image/links to stories from various "news" or "interest" websites, which I can click on to view. Opening a number of these sites in order to view the advertised "story" require setting up a free, or paywall account/membership, etc.. How can I eliminate these undesirable/unwanted options from being "offered" or shown on my firefox homepage? Something may look interesting, but I'm not one to sign up, or pay to view these opportunities. I see where I can eliminate entire Categories, but what I'm trying to do is block, or eliminate the "offer to view" what I deem "unwanted offers to sign up to view this "story". Can this "Junk/Bait" be eliminated from my homepage on a site by site basis? As examples: CNN, Wired", "the cut", among others. Can the page be configured to eliminate the offering of "Non-Free", "Non-Membership", "Non-Signup" Sites? (Apologies for my lack of appropriate semantics, I'm just a user, not an Internet Expert, developer, or or software-savvy person.) As an aside, is there a way to contact a real live human person at Mozilla/Firefox to assist with issues like this, or answer related questions. All I seem to find are circular links to "Contact Mozilla", which bring me to unrelated FAQ databases, and user forums, etc., where I find I'm unable to get an answer to the question asked? Thanks for reading and advising!

When all the comcast accounts migrated to yahoo, there wasn't supposed to be a change but I cannot send or receive messages through Thunderbird. I deleted my old passwords and tried to use the one that works at yahoo but it is not working.

Apparently I also have 3 thunderbirds running on my machine .  I don't know how to get rid of the old ones

I also got an error message that says 151.0.4 is not compatible with 151.0.3

Running Windows 10 but with extra year of security updates. Several web sites were running very slow or not loading at all. So I tried doing system restore - only went back 3 days but afterward said it had some problems, and link to Firefox did not work. So I did system recovery back to time from which I had just done restore. But I had no link to Firefox so had to download it new. But now I have none of my previous tabs, links, saved passwords,,etc. I'm hoping my previous Firefox is still on my PC and there is a way I can run it.

I set up a filter to move messages to the junk folder. If it's not from a .com, .net, or .org domain, move it. Here's how I set it up... If the "from" incoming message doesn't contain "any of the following" ".com" ".org" or ".net" move it to "junk". It moved .com and .org messages to junk anyway. What did I do wrong? There are too many TLDs to create a filter for all of them.

Today I created a subfolder and moved many precious e-mails there. That move was successful. Thereupon I shut down my Thunderbird and my computer. When I restarted my computer and my Thunderbird the folder which I created was empty. Please let me know how I can recover the e-mails. Thank you.