There are alot of posts about how notifications work but I can't find the one I need help with.

My notifications are working just fine but I can't find where to change the sound. Currently my email sound is the same as receiving texts.

If I go into setting on my phone I have the options in the photo but no option to change the sound.

Where do I make this change?

https://www.thunderbird.net/en-US/thunderbird/153.0esr/releasenotes/

https://www.thunderbird.net/en-US/thunderbird/140.13.0esr/releasenotes/

Hello,

I'm looking to customize the colour of the message header row (the part highlighted in red; with a black background as shown in the screenshot) to #202020, to match the rest of the elements of the view. While I've successfully managed to customize other elements (code below), I need help with identifying what to specify for the message header row.

.tree-table {

    background-color: #202020 !important;

}

treechildren {

    background-color: #202020 !important;

}

\#messagePane {

    background-color: #202020 !important;

}

\#msgHeaderView {

    background-color: #202020 !important;

}

I'm using Thunderbird 152.0.1 on Windows 11 (OS Build: 26200.8894)

Thanks and cheers.

Imagine you open an email, read it, and move on to something else. You do not close the tab. A while later you decide it's time to address that email. So you go back to your inbox and open it. A new tab opens. Granted, you should have just gone back to the open tab, but you didn't. tyou have two open tabs for the same email.

I would like Thunderbird to remember that an email is open and return to that tab.

Now, I ask this because I have noticed from time to time (almost daily) an email will be open in 3, 4 or 5 tabs, and I have no recollection of opening that email that many times. It could be that in deleting junk mail (as in advertising, not spam) I delete until I hit that email, but still, I'm hoping for a better way.

Loooong time Thunderbird user on Windows 11.

I have a new Win 11 computer, Thunderbird displays different than my old computer. I want The "Thunderbird has blocked remote content in this message" bar to display. How do I do that?

Guys I'm degoogling my phone. I used my gmail to signin all. Only 1or 2 login accounts are important. Can I convert that gmail to Thunderbird mail or proton mail.

Eg: [email protected]. --->. xxxxxproton.me

*No details should not be erased. Is there any way to do it?

I have been testing the Thunderbird for iOS beta and have not been able to add my email address, using the automatic search tool. I did seem to get it added manually, but the messages I see are what looks like generic messages, such as send one, this is a message that should truncate. I’m not seeing any real time email. Is this by design, while it’s still in beta? If I’m missing something, please let me know

My 30-year archive folder (with annual subfolders and others) no longer shows. The files are intact, and I have tried deleting relevant msf files, but it just does not show.
What do I do? I need access to that archive.
Thanks.

Hello Folks,

I try to migrate from Microsoft 365 Business Premium (should be like E3) to Mailcow, everything runs fine, 40K Mails moved yesterday, Calender worked fine, but Contacs are a mess. I exported the Data over OWA and importet it to Thunderbird.

Do someone know / have a Tool for propper get the Data over to Mailcow / Thunderbird from Outlook365?

Thanks in advance

Hey everyone,

I just wanted to share a quick appreciation post for Thunderbird, because it genuinely blew me away today.

To give you some context, I own a high-end desktop machine. However, given how ridiculously expensive hardware components (RAM, storage, and GPUs) have become lately, I’ve been trying to use it a bit less to extend its lifespan. Plus, burning through ~100W just to run basic tasks or heavy cloud-based web apps feels like a massive waste.

Because of this, when I do not need heavy compute, I occasionally switch to an old, 15-year-old laptop I have at home. It’s running an Intel Core (1st gen) i5 M 460 CPU and Linux Mint. On average, this laptop pulls only about 30-40W, meaning I basically cut my power consumption down by more than half compared to the desktop.

Up until recently, though, checking my emails on it was a nightmare. The "new" Yahoo Mail web UI is absolutely unbearable on a 720p screen—it’s bloated, slow, and leaves almost zero screen real estate to actually read or write messages.

It had been many, many years since I last used Thunderbird, but out of frustration with the web app, I decided to give it a shot.

Wow. What a massive difference.

The integration with Yahoo Mail was incredibly simple and seamless. The new UI is fantastic—clean, minimalist, fast, and inspired. It respects my limited screen space and just lets me get my work done exactly the way I want, without the lag.

A huge thank you to the developers for keeping this project so sharp and optimized. You've officially convinced me to install Thunderbird on my main desktop too (which also runs Linux Mint). I'm planning to connect all my mail accounts there and see how it integrates into my daily workflow.

Kudos to the team! Keep up the amazing work.

Hi guys.. I tried using the CSS code below bu it doesn't work in changing the font size of the mail compose window. Can someone help with providing a code?

@-moz-document url("about:blank?compose") {

* {

font-size: 35px !important;

}}

I have tried every fix I can find and nothing works. I can't find a way to enable logging so I can see what's happening at 10 minutes. Windows 11.

Hello. I wasn't sure where to post this but I am having a minor issue with Thunderbird.

I am on win10. I have the minimize on close and minimize on startup extensions for Thunderbird. They seem to work fine but now when I try to right click the icon in the system tray nothing happens.

Everything works fine in the taskbar, and even when I remove the extensions and restart the program and minimize it manually this issue seems to be there. All my other icons in the system tray seem to be working fine as well. Is anyone else having this issue? And is there a fix?

*pics attached for clarity

In case anyone needs this, here’s a guide on how to set up a Thunderbird email signature. Includes all the steps: from creating the HTML code, through adding it in the settings, up to removing the double-dash separator from ever being added. And no, no paid tools required.

So for about a week (after working fine for a couple of days on my new laptop. My POP mail account has been coming up with this warning;

"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."

and it only downloads one email, then sticks

I have tried clearing out some emails big to make space (I've been on holiday so there is a back log to come down, and i like hanging onto the hard copies)

I looked into the developer section and found this "Incorporate write FAILED! Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite] NS_ERROR_OUT_OF_MEMORY: Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite]"

I hoped it was my AVG update causing havoc, but I've updated that several times to no avail (it triggered a similar but different alert on a previous version. (I do not remember the specifics)

Weirdly, the Imap stuff still downloads fine.

Help- how do I give it more space?

Whenever I use the email search and hit Enter to "Continue this search across all folders" the result is a bar graph of hits vs. date/time and I have to click "Show results as list" to see the list. Is there a setting I could change to make the list the default display?

Thanks to all.

I started using web marketing from Odoo. (My Odoo is self hosted and accessible through cloudflare) and I had issues to see the images from emails generated by Odoo. First I had to deal with security settings and finally I could see images in Gmail site, but I still can't see them in thunderbird or better bird. I've checked all settings related and it seems to be like it should. A friend of mine told me his company has the same issue related to the images of their signatures after, probably an update of Thunderbird and they solved it changing the code on them. Does anyone have an idea of where I should check or could do?

Edit: I've tested Outlook Classic and the emails work properly

Final Edit: after cheking for days I've found the cause. I've checked security settings in Cloudflare,Odoo, Caddy, etc I found that I should not test marketing mails for the same address than the user of Odoo. Odoo get confused about tokens and stuff and blocks it

Thank you.

Copy OTP in notifications was very useful, but this feature has disappeared after updates... no information about that in the release log even!!
I found ext can solve that, but natively it was much better.
Any idea to get that option back?

TB Version: 152.0.1 (Windows)

I'm trying to make a search folder which would show all unread mails from the past 7 days, which contain the string "webina" in the body text.

Background: I would like to find all mails which have words beginning with the letters "webina" (e.g. "webinar", "webinaari", "webinaariin") but the settings in the attached picture return no hits.

When I, however, add the "r" in the end, changing the search string to "webinar", I get some hits - but obviously miss all mails, where some other letters than "r" come after "webina".

I also tried using a an asterisk wildcard ("webina*") but also that didn't work.

Is there some solution to my problem?

Hi everyone, I am currently on W10, using Thunderbird 152.0.1 64-bit and Firefox 152.0.6.

I have tried adding a GMail account to Thunderbird in the past, and failed, and I am failing yet again. I add my email and name, click next, continue with the default config, enter the OAuth2 Google screen, I allow everything, then it fails. Both Firefox and Thunderbird have been set to be lenient with cookies.

How can I fix this?