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Thunderbird just updated to 144.0.1 (64-bit), and now I see a blank area where message list used to be. This true for all accounts and all folders.

I used to see this issue temporarily after compacting folders, but usually (but not always) went away and messages showed up. Sometimes I had to close and restart TB. Now even that wont bring up the lists. I'm dead in the water. And, yes, I did reboot my computer as well. Screenshot of this state attached.

Thanks for any help--it's urgent. Bert

I can't add any email accounts in ThunderBird. The window keeps loading. Trying to uninstall and reinstall didn't help. It doesn't work on other devices either.

I tried to install the mailbox on another computer and the email configurator opened—I managed to add one account in this window, but when I tried to add another one, it didn't work like it does on other devices.

Downloading the latest version 143.0.

Have been having an issue for the past month or two where if left in the background firefox will slowly start to eat up my available ram. I was using it like this perfectly fine for years previous to now.

I dont have this issue when I'm actively using it, only when I tab away from it and specifically its not on screen. Once I tab back to firefox the ram usage immediately dips back down to normal. I have tried many things to try and solve this like doing a clean install of firefox, getting rid of extensions, clearing my browser cache, closing all other apps to verify it was just firefox, clearing my history, turning on hardware acceleration. Nothing seems to help, im really at a loss and I don't understand what changed besides it being updated in the past couple of months.

My computer is fairly heavy duty and I have 16gb of ddr4 ram that again was working perfectly fine to run firefox before these past couple of months. As a result of this issue however if left in the background for too long on accident firefox uses up all my idle ram and starts causing other programs to not be able to run and has even crashed my computer previously when trying to run a program like clip studio paint.

I have noticed that while running the firefox task manager there is definitely some difference in memory usage when i tab back in after letting it be in the background so I have attached screenshots of the regular usage while tabbed in and the captured usage when i tab back in.

Any possible solution is welcome because I really enjoy using firefox and i dont want to have to switch browsers unless absolutely necessary.

I am running TB. Using the Windows Performance Monitor, the usage jumps from 30% to 90% and then 100% once TB is open. I am running 1.128.14.0esr (64-bit). I have the before and after screenshots of the CPU, see attached. Is this known behaviour?

I tried the steps at https://support.mozilla.org/en-US/kb/profiling-thunderbird-performance to record. The Multiprocess Browser Toolbox window hung the 2nd time (the first time, nothing happened after Capture recording), then I left it 20 minutes and came back to the message that we were unable to connect to the browser within 30 seconds. It eventually finished, painful - htpps://share.firefox.dev/41tZ5xy

Updated to esr 128.14 Now Reddit (Redgifs) Hosting site for gifs crashes Firefox and cripples my PC. I've tried restarting in safe mode, then refreshing Firefox. Nothing is working. Reddit support just has an issue with the Gifs not playing, but nothing as extreme as what iam experiencing. I believe it may be something is preferences or a codec or something that was changed in the recent update. Any advice/ help would be great. Edit: OS is windows 10 latest updates Amd- Ryzen 7/32gig 3.20 ghz PC. So can handle a little bit of heavy browsing.. FF 128.14 esr Ext- Ublock Origin

       Search By Image 
       Flash and Download Video. 

Even with Addons disabled still occurs. Really at a loss here.

How can I get Firefox Focus app on my Home Screen to open? For two or three days now, after entering my passcode, rather than going to Firefox Focus, takes me to Google. I have played a competitive game app I have on Firefox Focus for years. Suddenly I can no longer access it directly through Firefox Focus. Image below is what appears when I go to Firefox Focus and enter my password. The main game I play opens in Google rather than Firefox Focus.

Thunderbird keeps coming up with the message: The folder 'inbox on dveitch@202.215.17' could not be compacted because writing to folder failed.

There is plenty of disk space and compacting has been working fine until recently. Has a Thunderbird update changed something?

Inbox displays nothing except a few emails from years ago. Troubleshooting mode shows a correct inbox. Returning from troubleshooting mode reverts to the incorrect inbox. Selecting Reset Controls while in troubleshooting mode corrected the issue.

Greetings!!

I started getting the most bizarre problem over the last couple of days from Thunderbird. Suddenly, for certain emails (not all of them), Thunderbird will start truncating the email. The email just stops loading partway through, and the email is not marked as read as it usually is. There is no progress bar at the bottom to indicate that the email is still loading. But, if I view the message source (via the View menu), the whole email is there. It typically happens with emails with either images or ones that fetch some sort of dynamic content.

I've repaired folders, rebuilt summary files, removed parent.lock, restored a backup of both program and message files from two days prior to the problem starting, reinstalled my current version of Thunderbird, rebooted the computer by holding the power button down for a minute, tried Thunderbird Troubleshoot mode, tried Windows 10 Safe Mode, disabled all add-ons, cleared my cache (under disk space), cleared my startup cache, created a new profile, compacted folders, and (temporarily) gave it a free pass through my Firewall. Nothing had any effect.

The Thunderbird Error console doesn't show anything in particular different between emails that load fully and those that do not.

To say I am at my wit's end is an understatement. Is there some sort of simple solution I am totally missing, by any chance? Thank you for any assistance!!!

Since a month or so, I am experiencing a rather long delay before seeing content of the email body area. I can see the content of the Subject line, but text in the body area is slow to show up.

I've been using Thunderbird for probably 10 years or more. My current version is 140.1.0esr (32-bit) - unsure when this was updated from previous version. My pc is a 64-bit pc so I'm unsure why I'm running the 32 bit version of Thunderbird.

Starting today, when I click on the New Message button, nothing happens except the button seems to register the mouse click with a slight change in appearance. Usually this would open up a blank email but I currently can't write a new email until this is resolved.

Turning off Anti-virus makes no difference. I've tried a PC restart also with no effect.

Any ideas what I can try please?

Recent problem, real nasty, may just have to give up on Thunderbird, at least on the Windows 10 computer.

Click on folder name in folder list, all messages previously downloaded and viewable, when the message list appears, it instantly disappears and the message list pane displays "no message found" and it proceeds to download the entire message list all over again. For some folders with over a hundred thousand messages, this is unacceptable, obviously.

My green "New Message" button has stopped working for some reason. I've tried switching it off then back on but it still won't work. so at the moment I can't create new emails. Regards William

Imagine having more than 30 Accounts to be added on a single profile my concern is how will Thunderbird handles file size if it's using one file (MBOX) and if the file has no solution, can I create files and keep mails on them until they reach max size?

Hi, I have been using Thunderbird for many years. I have not made any changes to the standard Windows 10 version.

Suddenly, when I want to open a New Message, the button is highlighted in blue but nothing happens when I click on it.

I was running TB 128.11.1esr up until 10:00 this morning on Windows 10 Professional 22H2 64-bit. I have some e-mail messages that I cannot delete. This morning I auto-upgraded to 1o 128.12.0esr and then to 140.0esr. I still cannot delete the messages When I try to delete a group of messages (containing the message in question), the messages in the in-box turn from black to gray, and I see at the bottom "Moving messages to Trash". But nothing happens. I did a "Compact folders", and it completed without any error messages. I can look at my Trash folder, and the contents seem to be intact. In one case, I individually deleted all of the messages except one. With this one, I open the message and see nothing in the bottom message content pane. When I do a "cntl-u" to see the RFC 5322 message headers, I see a window that is completely blank. What is happening, and how can I debug this? Thanks.