I-Thunderbird Community Forum

Upon opening Thunderbird on a Mac (OS 26.5) the program posted a window requesting a password in order to add a new tool to the application. Unfortunately we have lost the password and the program insists it needs the password to continue. An option is offered to 'Ignore', but pressing this button does not launch Thunderbird, rather it sets up some Mozilla 'thingy' operating in the background (the Thunderbird icon in the dock is active) which can be terminated by Force Quitting the process. The thing is, Thunderbird is now unavailable at this point due to the new tool that could not be added to the application.

Now the Message Header Customizer I was sent to about a week ago is no longer compatible with Thunderbird 149.0.

Is there another somewhere I can install?

James

Hi there,

Is there a way to get checkboxes to select messages or at least a plan to get it in a future release? I saw that there has been an add-on in the past, but not maintained for some years and therefore not possible to use in newer versions. Yes, I know that you can select messages with ctrl and mouse click, but there are others in my family who are not familiar with it and reluctant to get used to it. (have used gmail for too long).

Greetings Grauer

Since the upgrade to Thunderbird 146, the plugin for Allow HTML Temp has been disabled. Following Find an alternative add-on button, I get directed to an upgraded version of the add-on 10.1.1, see screen clip, which states it should be OK up to version 147.

I had the same problem last time the upgrade was to Tbird 144 and Allow HTML Temp add-on was updated to 10.0.8. I followed up with the add-on developer who claimed it was Thunderbird is erroneously rejecting the add-on. They said "Thunderbird itself checks the compatiblity on add-on installation at AMO, where the add-on version 10.0.8 is marked as compatible up to 144 at the moment." I don't understand what the "AMO" term means. The developer sent me a modified version of their update, but closed the issue with "Not an Add-on Issue. Compatibility check on AMO failed."

It looks like the same problem is happening again. Can you please tell me if this is a problem with Thunderbird checking, or is it with the add-on? When will this type of issue be solved?

(I was also told by the developer that I might have changed some feature of Thunderbird from standard, but that is not true)

I'm using Thunderbird vesion 149.0 (64-bit) on Windows 11. Our Email host has a 100 emails per hour limit. We need to send out 400+ emails to subscribers and are having issues with using only Send Later and BCC being rejected by certain email domains and or going to spam. Is there a way to use both Mail Merge and Send Later to send 100 emails to the recipients {{Email}} {{Name}}, pause one hour send another 100?

Hi there,

I'm looking for a mail client, which works portable. Unluckily the Thunderbird editor is real bulls... crap and miles far away from all other mail clients nowadays. All modern mail programs can handle different font types, colors, they all support different font sizes like 8, 10, 11, 12, .... point text hight and having tools like copy formats (mostly a brush) for easy formating.

Some years ago I was using an addon, which added this feature in some parts. I don't understand, why those features are still missing. Today we have 2025 and the time of plain text mails is history since 10 years.

The rest of Thunderbird is really great, especially the portable version.

Questions: 1) When will Thunderbird provide powerful and state of the art formating stuff? 2) Is there an addon which adds powerful and state of the art formating stuff?

Cheers, Kay

I've developed a thunderbird add on. Now I need an extension ID I've read https://extensionworkshop.com/documentation/develop/extensions-and-the-add-on-id/

So how do I get an extension ID?

Hi,

i started using Thunderbird on my Mac last year as i was experiencing issues with Outlook. I was very happy until now, as Thunderbird has a lot of nice functions that are easy to use. One of them is the integration of Teams via the Microsoft Teams Quick Access expansion. However, since two days this has stopped working for me. When i open the expansion tab, i get a message that "the browser version is not supported. Please download the desktop app".

Is anybody experiencing the same problem? Is there some kind of incompatibility between the versions that i am not aware of (both expansion and thunderbird are on the latest release version)?

If anybody knows a solution it would be really good. Thanks

Bei jedem Öffnen von Thunderbird bekomme ich mindestens 200 mal diese Fehlermeldung angezeigt. ich habe mit Mail Merge gearbeitet, jetzt jedoch deinstalliert: Dennoch permanent die Fehlermeldung. Wie kann ich den Fehler beheben? Siehe Screenshot

I often end up typing the same email response, over and over.

Is there a way to set up pre-made messages in Thunderbird, which are easy to select or migrate into my reply space?

Would also be nice if these pre-made response mssgs were separate from my in/out box accounts, so that if I change IMAP email provider, I don't lose the pre-made mssgs.

I seem to have purchased "Owl for Thunderbird," unwittingly paying 10 Euros ($11.93) while in England on 2.11.26. I don't want or need it and I want remove and cancel the add on. I also want to stop paying. How do I do that? Where is it hidden in Thunderbird?

None of the topics suggested fit. I'm having trouble with getting extensions on toolbars. In the customize toolbars window there's a toolbar at the very top of the page that starts with mail, calendar, addressbook, etc. Just for example, the Google Calendar and Outlook Calendar extensions are in that toolbar, but I can't move them to another toolbar and that toolbar disappears when I close the Customize page (either way) and I haven't been able to find a way to get it displayed in other places. That toolbar is very similar to the toolbar that appears on the left side of the Thunderbird window, but that one doesn't include the extra extension buttons that I mentioned above.

Some people in various places have suggested that customizing Thunderbird toolbars is done the same way as in Firefox. But I haven't been able to find a puzzle piece icon anywhere.

By the way, I used to be able to add more toolbars, which I found to be an attractive concept, although that implementation didn't always work so well.

Please tell me, how to use composescript.register a compose.js file. Where I put it(popup.js, backgound.js,..). Because runtime.onnmessage at compose.js is not be called

Hi, I'm following up on this thread which is closed- https://support.mozilla.org/bm/questions/1483264 It describes an add-on: "DefaultColumns" https://www.ggbs.de/extensions/#dc. I could not find verification of safety for this add-on. I reluctantly installed but it wants permission to my whole computer so I uninstalled.

To me, this functionality is a necessary feature needed in Thunderbird. It merely creates default columns for all new subfolders. Could someone verify the safety of this add-on, recommend a safe option or add the functionality to Thunderbird. Thanks.

Been using Tbird for quite a while. Currently using ver. 149.0.2 but problem started before updating. Used to have a tab called Cardbook which shows all my contacts and is synchronized with Google. Its gone and I don't see how to add it back in. Advise please and thanks.