Thunderbird Community Forum

My Thunderbird (version 115.12.2) is running on a Windows 11 system. My profile has multiple accounts configured as IMAP to multiple email services. I also have the Status Bar and Activity indicator enabled. Randomly, both indicators will show busy for an extended period of time. When I view this in the Activity Manager I see one or more folders hung for 10 or 20 minutes downloading one message out of several. This occurs in multiple accounts and servers.

I have researched this and attempted the fixes presented. I have cleared the cache files and compacted and rebuild email folders as suggested, but the slow update still occurs.

Then I decided to try and capture a ProMon.exe trace to see what is happening. What I found was Thunderbird.exe was spending all of the time while hung access the following file: C:\Users\MyUser\AppData\LocalLow\Intel\ ShaderCache\4a5eb0e65e559fc08e65ecb2fa9d650817ae895582a7a7ede162866d3e47a05a, like it was stuck in a loop.

When Thunderbird is operating normally, it is accessing this file but only for short period of times. Research says that it is ok to delete the files in this folder. I did that and it seemed to help for awhile. But it started happening again.

Does anyone have any idea what could be causing this? Is there a Windows thing to look further into? Any help would be greatly appreciated.

I keep getting this message "Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox." every time I log in, try to delete an email that has already downloaded, and every time I click get messages to download messages.

No messages have been downloaded since two days ago. I did go on the web version of my email and deleted all emails from that time period in case there was a virus so it's not that. I strangely started when I ignored the compact folder message sever times. I did however try to compact the folder from the file menu, as well as cleared the cash and emptied the trash.

I made sure I had the latest update as well. I am thinking the software is corrupt at this point.

since Thunderbird did automatic update with version 140, messages only show time of reception, all the rest is blank

there is a reply from someone with same problem saying run "repair" but I do not find this option

Hello I have asked this before but i did not get an answer i could use i did get an answer but it did not work. So i am asking again. I can run Thunderbird for like a month and then all of a sudden all inbox mail goes to trash folder abut not with the name of the sender with my name as the sender I have reinstalled several times i have changed my security gone from 64 it to 32 bit removed some add ons or extensions. Now it is run from Comcast email and that is correct as far as i know. Not sure i have it filtered correctly i am stumped please help me here . every time i d reinstall i need to put back manually all my contacts and that takes forever . Please i have even disabled Norton antivirus for 1 hour and it was doing this with windows explorer as well so please I know i asked this before but nothing worked. I hate to stop using Thunderbird but if this keeps happening i may need to. the only extensions i have in Thunderbird enabled are emojis, config button, restart, and ublblock. Not sure how to get to filters and change any thing. Thanks Please i need help thanks upset Thunderbird user

Whenever I try to paste formatted text from the clipboard into a compose window it only pastes as plain text. Is there a setting that controls this?

I have Thunderbird 141 on macOS 15.6. In Thunderbird settings, I have Composition settings set to "Both HTML and Plain Text" but I also tried with "Automatic" and "Only HTML" to no avail. I also tried pasting from different programs, Word, Pages, a rich text document in Text Edit etc. But it always defaults to plain text.

Any help much appreciated!

Hi,

In earlier TB releases (don't remember which ones) it was possible to collapse (or expand) all (sub-)folders by right clicking the foldername.

Actually I'm on TB128 and that seems no longer possible (or I am overlooking something).

I've been searching everywhere, also for an addon to do that, without success. Is there a solution ?

I really don't understand why this was removed. Why is TB always changing (and removing essential) things, mostly not for the better ? Mozilla, please, less "design" but more "functionality" and "user-friendly features"

This release has removed the option to sign-in to my outlook dot com account using a security key. it worked just fine using version 128.13.0 esr. Tried to rollback to that version and I get "account will need to be recreated" warning message. I'm also getting "too many requests" message when trying to connect to outlook.com through the new version. Of importance, when I go through a browser and connect to outlook, no issues.

Something has changed with this release of Thunderbird - which I understand is FREE and I appreciate that, however as a very long time user, it would be nice to understand what's going on.

There is no settung that I can find to stop automatic downloading of mail. If read mail is in the INBOX it disappears and is replaced by new unread mail. Where does the read mail go and how do I turn off auto downloading pf mail?

Hello Most of my incomming emails are received in unreadable text. I can read the subject line ok. Screen shot attached. Could not find much info on it. Some info related to versions prior V78 Using V140.1.1 download 13 Aug. Problem started occuring 2 days ago not after an update. I did not make any adjustments to the settings.

Brian

On wife's laptop, got side tracked and said ok to Upgrade (thinking it was Mozilla Firefox) but it was actually for Thunderbird Email app. Realizing my mistake I quickly closed Thunderbird before it did the upgrade. We like the layout of version 102.15.1 and it's still running 102.15.1 on new starts. But now when we start Thunderbird, the Firefox browser immediately starts and goes to the below link, https://www.thunderbird.net/en-US/thunderbird/115.0/whatsnew/?locale=en-US&version=115.10.1&channel=release&oldversion=102.15.1

Have to close or minimize firefox to see Thunderbird. Need to find a way to get rid of this browser startup on Thunderbird. I've tried these below but they did not stop it.

/* added this registry entry */ HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Thunderbird

   "DisableAppUpdate"=dword:00000001

/* also added a policies.json with the below text */ { "policies": { "DisableAppUpdate": true} }

      /* in this folder */

C:\Program Files (x86)\Mozilla Thunderbird\

        /* and in */

C:\Program Files (x86)\Mozilla Thunderbird\distribution\ /* Edit Add, oh also I never check the */ When Thunderbird launches show the start page in Message area /* But even if it's checked it goes to another page not the link above */

/* The update-settings.ini has the below in it */

If you modify this file updates may fail.

Do not modify this file.

[Settings] ACCEPTED_MAR_CHANNEL_IDS=thunderbird-comm-release

/* Anybody know where I can track down and delete where this browser startup if coming from? */

Hello. Until recently, I was using the ESR version of Thunderbird. When I had an email in my local folder and clicked on ‘Reply’, my reply email was sorted into the current outbox. After switching to release version 141.0, emails that I send as replies from the local folder remain in the local folder. However, I would prefer to have them in the current inbox or outbox.

Why suddenly when I look at my gmail.com account, and read the emails, the next day all emails are in the trash??? Is there a setting I can change?

As I can not ring to ask what has gone wrong I am writing it here.

Late last night I received 2 messages which were gobbledegook. This morning when I turned on they all came in the same. One could work out from where they came because email addresses showed up in the text in blue.

I shut down Thunderbird. Reloaded the software from the website and loaded it. Everything still coming in as gobbledegook.

I then remembered that I also can down load emails through IMAP. Went there and they were all perfectly legible. So I moved all the messages to my ordinary inbox expecting it to automatically apply the filters and it did not.

Why is IMAP working and the ordinary inbox is not??????????????????????????????????????

Regards

Anthony L-W

I get this message when I click on the "share" link on a web page. I can find 3 profiles, 2 are old and out of date. I have read the articles about profiles and frankly I am at a loss as to what is going on. "A newer version of Thunderbird may have made changes to your profile whaich are no longer compatible with this older version........" As far I getting and sending emails everything is working normally. I just don't understand what is causing the referenced message. Thanks for any help I may receive.

I have a user that can't get their list of folders to populate in the Subscribe settings. They have updated Thunderbird, uninstalled, removed their AppData\Romaing\Thunderbird folder to delete any settings leftover from the old install, installed the most recent version, and they still can't get the folder list in Susbscribe to populate. Their account connects to our email server and outgoing servers just fine, as they are able to pull down their Inbox with the messages, they receive new messages sent to their account, and they can send emails out of Thunderbird. So, Thunderbird just can't get the list of folders to subscribe to. I can see Thunderbird login correctly and issue the Fetch command to get the Inbox. The subscribe folders list eventually "times-out" and the activity manager also shows the error "Connection to server.example.com server timed out". As I said though, the server settings for the user are correct and the incoming connection works just fine and can pull in new emails without a problem.

New incoming emails are no longer marked as "unread" and In bold print when they arrive. I have to manually mark them as unread. Then when I read them, they do not consistently change to "read". This was not a problem until I started using the 128.10.0esr (64-bit) version of Thunderbird.