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For months I was experiencing the problem of "Thunderbird not responding" occasionally. It was a short duration issue (a few seconds to a minute). I reinstalled Thunderbird several times without success. I read almost every comment available online about this problem and I tried many ideas and recommendations I found without success. Most recently the problem became so serious that it was not a nuisance any longer. It was nearly impossble to work waiting for minutes to open an email or to continue typing while preparing a message and being interrupted by the problem I am describing. I ran Thunderbird in safe mode and determined that none of the add-ons is causing the problem. I turned the firewall OFF and determined that firewall was not causing the problem. I then decided to run Thunderbird in Offline mode and found that the program works normally. Then while in Offline mode I decided to download more messages and the program asked me if I wanted to switch to the Online mode. I said yes. New emails were downloaded and without going back to the Offline mode I was able to work normally without any occurrence of the "Thunderbird not responding" problem. I have been using this workaround for several days now. I download a number of eamails. I try working in Online mode and I cannot do it. I switch to Offline and work fine. I switch back to Online mode and I don't see the problem any longer for the whole day. Do you have any idea as to the origin of my proble? I am running Thunderbird 115.10.2 64 bit on Windows 11. I had the problem originally using Lenovo T490s and more recenlt Lenovo X1 Yoga

CVE-2024-4367 has been announced several days now with MITRE and CIS. There is also an issue/advisory on the github repo for PDF.js which appears that the fix has been merged into the master commit of PDF.js (https://github.com/advisories/GHSA-wgrm-67xf-hhpq).

The vulnerability is pretty serious and yet there is no Security Advisory from Mozilla on affected versions, etc. (https://www.mozilla.org/en-US/security/advisories/)

Is this normal and I am just being impatient?

using Win 11, Firefox browser, Google search. subfolders are listed but will not open. Using Bing they do open but I prefer Google. If this is a Google problem or a Win 11 can you steer me in the right direction. Thanks My email is artsiii@aol.com

Hi, I am trying to login to my emails and after entering my password the following message comes up message comes up. 'Login to server mail.optusnet.com.au with username dianne.hill failed' Can you please help me?

I filter messages to move spam to my trash folder. I don't use the spam & junk functions.

I'm on some oddball's list who sends all their spam in bold italics and an uncommon font.

Easy to spot but it's easily 30 a day. I'd love to filter them. I don't see a 'by formatting' option.

Any ideas? Thanks!

I haven't been able to login with MFA on my uni website and also make purchases using credit cards on commercial sites.

I have tried Troubleshooting mode and the problem persists. Switching to Opera browser showed normal functionality.

Firefox 125.0.3 (64-bit) on macOS 14.4

Somebody is using my name on your website with a different email address and it is not me. I need your help. My email address is Bobbiledvina85@icloud.com I don’t know who this is

I have Mac, Windows, and Linux boxes. All show connected to Firefox Sync, however, bookmarks etc are only actually in sync between Windows and Linux. I've tried logging out on all devices, resetting passwords, reinstalling FF on the Mac. Can't seem to get it to work.

Created several email mailing lists. Stored them in the Personal Address Book (PAB). I'm sorry, but Thunderbird doesn't seem to work like any other email client. How do I address an email using one of those mailing lists in the PAB. Tried typing the whole name of the mailing list in the To: field. Didn't work. I'm not entirely stupid but it doesn't make sense to me.

Hello, Firefox just released the newest version on PC and advertised it with a speedtest: https://browserbench.org/Speedometer3.0/ I made that test and got a score of 7.03 I made that test on Opera mobile (My phone got locked while the speedtest was running, so this may had impact) and got a score of poorly 2.14 BUT on Mozilla mobile which I can confirm feels SLOW is the speed score: 1.70 And now lesser is not = better. I like that you can arrange tabs, I like that you can use addons, but I miss a scrollbar, I miss side LOADING/OPENING speed. Many many people love Firefox on PC, but why is it that slow on mobile? And why can I not get a button to scroll fast up and down? I have to install a addon which I need to access everytime to click "scroll to top/bottom". That isn't handy!

I really wish, the developers would share some love, because I LOVE firefox, but this is just not useable :( I mean come on, a scrollbar! Give it me! And SPEED. And no my Samsung Galaxy S10+ with 8GB ram isn't too slow.

I made a private homepage years ago made up entirely of links to web-based AND local folders and files that are grouped into columns of categories like banking, medical, insurance, budget, etc. I keep it off-line on my desktop. I wrote the code so I could place an external link to a bank for example, next to a local link to the folder on my computer where I download statement pdfs from that bank and other bank files. The web page links displays: MY BANK Chkng/Debit Statements Credit Card Statements Bank Information The top link goes to the bank web page on line while the three lower links open folders on my computer where I save pdfs, txt, images, etc from the bank. Firefox opens the folders as "Index of file:///C:(folder path).

My personal home page is laid out with groupings like this for all sorts of information and associated web links: broker, vendor invoices, medical test, taxes, social security, health insurance, subscriptions etc. Today we get .pdf files with all sorts of information and no help organizing it for easy access. The Firefox browser has become the perfect tool for me. But I learned HTML coding years ago! Not so easy to do for others.

Today, many entities have on-line access that provides downloads like invoices, test results, payments, subscriptions, and much more that replace paper. Creating folders to hold these documents with their own local links on your web/local homepage makes sense to me.

While you can use "File" on Firefox to open a local folder or individual file, you cannot save it as a link. However, you can copy the path and transfer that to an a href=" line of link code in your homepage and build on that method. It's amazing how many types of files can be displayed in a browser that are locally stored. Even a link to a spreadsheet file will open that spreadsheets application. Having a varied list of links with quick access is worth the code-writing time. I wish there was an app to help anyone make their own custom folders and links to the contents in a "my homepage.html" . Is there a product idea in there for you folks?

I mistakenly moved a folder into another. It is now a subfolder and I want to move it back. The move command is not working. How do I move a subfolder back to be a primary folder?

Has anyone found a way to have a separate "reply signature?"

The use-case is that I may send an initial email with a 'complete' signature (first name, lastname, email, phone, etc.). But when the other party replies it would be nice to then reply to that with just my first name. Or at worst, auto-insert the full signature.

I've setup my full signature and auto-populates when I create a new message. But not on the reply.

Any suggestions?

I can receive emails but cannot send. The error message I get when sending emails. This began as of the most recent Thunderbird update:

Sending of the message failed. An error occurred while sending mail. The mail server responded: <mjndoug22@me.com>... Relaying denied. IP name possibly forged [70.109.132.97]. Please check the message recipient "mjndoug22@me.com" and try again.

I tried to attach/imbed a screenshot of my SMTP server settings but your Browse button below won't allow the paste.

One of my calendars is not syncing. The same account (O365) also is not syncing the sub-folders.

Not sure what setting may be off.

I added some events from Outlook for Android on my phone sync'd to the same account. But they don't seem to appear, although they are on Outlook Web Access on the browser on my Windows machine.