I-Thunderbird Community Forum

Recently moved to Linux Mint with Thunderbird 140.5. It's a new experience. Thunderbird has downloaded all my emails and folders from my Outlook.com account. Can send, receive, edit emails no problems and all is visible from Outlook client on other machines. Thunderbird does not show my calendar entries or contacts. I do not wish to import from Outlook as I would like to access my Outlook.com from several locations. Been through online Help articles. Nothing seems to work. Have installed TbSync and Lightning Calendar Tabs add-ons with default settings. I have tried suggestions provided in this Mozilla Support. Other forum suggestions don't seem to relate to the version I have.

I'm sure it is something simple as everything else I have done with my new environment is working wonderfully. Thanks in advance.

Bill

Hi there, I'm experiencing an issue with the Microsoft Teams add-on in Thunderbird, specifically when using it with multiple Microsoft Exchange accounts.

Issue Description:

Previously, I was able to select between accounts using the Teams icon in the toolbar without any problems. However, after switching operating systems, the behavior has changed:

• When I hover over the Teams icon in the toolbar, the account selection menu appears as expected.
• As soon as I move the mouse to select an account from the menu, the menu disappears immediately before I can click anything.
• I've made sure that the mouse doesn't leave the icon or jump erratically, but the menu still vanishes every time.

This only started happening after I changed my OS. On my previous setup, the add-on worked fine.

Fixes Attempted:

• Removed and re-added the Exchange Accounts
• Reinstalled the Owl for Exchange add-on
• Fully uninstalled and reinstalled Thunderbird, including manually deleting the profile data folder
• Disabled hardware acceleration

So far, nothing has resolved the issue, and I haven’t found any other reports of this specific behavior online.

The attached image shows the account selection menu when hovering over the teams add-on, but as soon as the mouse moves over to the menu it disappears.

System and Application Details:

• Thunderbird Version: 139.0.1 (64-bit)
• Operating System: Kubuntu 25.04
• Desktop Environment: KDE Plasma 6.3.4
• Display Manager: X11
• Kernel Version: 6.14.0-15-generic (64-bit)

Any suggestions or workarounds would be greatly appreciated.

I'm trying to get the calendar app working in a new Thunderbird installation. Here are my notes on what I tried: https://addons.thunderbird.net/en-us/thunderbird/addon/lightning-calendar-tabs/versions/ Download lightning_calendar_tabs-3.8-tb.xpi (latest version) to C:\Users\ken\Downloads In Thunderbird: Tools --> Add-ons --> Gear icon --> Install add-on from file --> C:\Users\ken\Downloads --> lightning_calendar_tabs-3.8-tb.xpi "about:addons Lightning Calendar Tabs could not be installed because it is not compatible with Thunderbird 144.0.1." Any suggestions?

In Outlook it is possible to have the favorites fixed in top of the folder pane column. This is very handy when moving emails from the inbox to often used folders which fall outside the displayed part of the folder pane. (You don't have to scroll back if you want to display the content of the inbox). I cannot find a way how I could do this in Thunderbird. Is there a way to fix favorite folders in top of the folder pane?

This question was asked 10 years ago but I can't find where a fix was ever found for the latest version of TB. I would really like to keep the favorite folders in sight while scrolling down through the other folders I've created.

Is there an add-on for this? I searched without finding one.

Hi! I have been using Shrunked Image Resizer's module for a long time (reduces the size of attachments before sending). It's no longer compatible with the new version of Thunderbird (140.1.0). I don't find any alternative module to replace it. What's the solution please?

Since to old add-on enabling customization of the message header toolbar doesn't work now, where might get one the is compatible with Thunderbird?

Thanks, James

Do add-on settings get backed up when backing up a profile? I always have to manually install my add-ons when reinstalling a profile. I have one add-on that is a pain to set back up (Identity Chooser), and I have assumed the settings for it are lost.

I'm on 141.0 (64-bit). It says I'm on the "Release update channel." Quickfolders isn't working. How do I get to an older version of Thunderbird where Quickfolders will work again?

I am finally making the move to ditch Microsoft Outlook for good and use Thunderbird as my daily driver for all my email needs. One of the things I did appreciate about MS Outlook is that it has a setting where if you've opened up an email and either delete it or move it to a sub-folder, you can set it so that the program will open either the next or the previous email in your list automatically so that you don't have to go back to the main view every time.

I've tried searching the support forums to see if such a feature exists in Thunderbird but I have not yet been lucky in finding any recent information. Does such a feature exist or has someone written an extension that can do this?

Every now and then a folder flag will change to the drafts flag/icon, it seems to be a random occurrence which can happen to any sub-folder. Up until the most recent Thunderbird upgrade I had a working extension called FolderFlags which allowed me to go into the Folder properties and change it back but that extension no longer works with the latest version of Thunderbird and there is no alternative extension. How do I change the flag back to it showing as an ordinary sub-folder in my Inbox instead of Drafts? As an interim measure I've created a new sub-folder and copied the emails from the old into the new but that's not ideal at all. I hope somebody will create an updated extension but has anyone any other suggestions please?

Can the order of the sub folders in email account folders be re ordered. Is the add on "manually sort folders" still available? I there another method of doing this.

When I click on the Add-on compatibility check drop down arrow at the top the message box for add-ons is too big on the screen so I can't see the whole list to the bottom of the box and the box isn't resizeable? Anybody know a solution please?

In certain instances, I can no longer copy/cut from Cardbook notes. This happened in last few months. I just have time now to post the problem. I know since then Thunderbird had updates and so had windows. I am on Thunderbird 128.5.2esr and Windows 11 and firefox 133.0.3 I used to be able to select a word or many words and then right click. Then copy or paste would show up as option in a list. Now no list shows up. But control c and control v sometimes works. If I control c and control v within the note that works. I can copy from something like Word and control c and paste using control v and vice versa. But if try control c in notes and then control v in website that does not work. And that is what I use most.

Suddenly, a few days ago, this add-on quitted working, the box where you can type the string to search for is not functioning. It is visible, but not active. Tried disinstalling and re-installing, but nothing. The add-on seems compatible with the versione of Thunderbird, the 141.0, but in reality doesn't work. Could anyone here give a help?

Thank you in advance

TOPIC 1 In Betterbird there is the option to colour the email account. The only option in TB is to change the colour of the email envelope icon. There used to be a extension that achieved this but fell by the wayside in TB 115 I researched this on TB forum on reddit.... https://www.reddit.com/r/Thunderbird/comments/17unvb1/different_account_colors_in_thunderbird_115/

It made interesting reading and I did download the 'account colours' zip to install and see if it worked. Only thing is that I do not know how to install it........can someone brighter than me tell me how to install it and to remove it if it doesn't work. Many thanks.

All I am trying to do is change the subject line on emails. I found the add ons Header tools lite and improved and installed them. When I select a email to edit the subject line I highlight the message go to menu message>header tools lite>edit lite or edit full source neither one does anything???

Also tried opening the email go to menu message>header tools lite>change header details hit enter nothing happens. Please help and thanks in advance

During recent update 148.0 (64-bit) google calendars are not shown either in "Events and Tasks/Calendar" or in "Today's Pane".

Subscribed calendars are still there, but nothing is shown in the days/weeks/months entries apart from the first calendar in the subscription list! Nothing else. And nothing in today's pane.

Reinstalled Thunderbird and reinstalled "Provider for google calendar" but nothing changed.

Thanks, GG

Installed FiltaQuilla. Need help to construct Subject Regex Match string to filter spam with subject line where the spammer intersperses spaces between several of the characters in the message subject line. Tak e C o n t rol o f Y o u r F in a n c e s : O ur D ebt R eli e f Pr o gr a m Trying to filter on 4 or 5 successive single characters interspersed with spaces -- e C o n t Tried ^*[ ][^ ][ ][^ ][ ][^ ][ ][^]*$ , which I thought would return true on the sample above. It did not seem to work.