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Running Windows 11 Home and Tbird 153.4.0esr. Tbird configured with IMAP. I have many years worth of emails stored in my Tbird profile folder. Profile folder is 25 GB.

I want to delete the bodies of all emails in the profile folder but retain the subject lines to minimize the size of the profile folder (while keeping bodies of all emails on the server). Then I can retrieve any email from the server.

Anyone do this successfully without losing emails? Is there a step-by-step procedure for doing this on the Mozilla website? (Google is giving me an Ai answer but not a link to a Mozilla answer.)

Good afternoon

I have been struggling to find some messages specific to specific dates and spend an awful amount of time tryomh yo access the correct one.

The solution proposed is a bit unclear to me, as it refers to "future folders". I need to unthread all my messages. Is this possible?

Thanks

PS The only version number i could find was for Firefox. There does not seem to be one for Thunderbird.

Thunderbird did not work last summer so I switched to Daily working similar and fine. One day forwarded messages started to contain a huge list of mail-data (Authentication-Results, DKIM-Signature,..) instead of just time, date, topic, adress. How can I get rid of this? Thank you

Since our clocks/time went back one hour last weekend, Thunderbird for Mac is displaying the incorrect time. It displays the time as 1 hour ahead, effectively hasn't accepted the time change. The system time is correct, and Thunderbird is set to read system time. I have also tried changing it to "set manually" to our location, it makes no difference. Any assistance greatly appreciated.

The last update to 156.0.1 changed my inbox settings.

Previously when I would highlight an email in my inbox it would show it read and show a preview in the lower frame. Now the email stays in BOLD and there is no preview frame. Where do I change it my Inbox back like it was previously? How do I change the setting so that when I highlight an email in my inbox it shows read and shows a preview in a preview frame?

I use Thunderbird expluicitly because it is open source application not bound to any specific services. I am very dissapointed to find connection to "thundermail" build into application and WANT IT PHYSICALLY REMOVE from it.

I kindly ask to help in removing it from my copies of Thunderbird. Thank you.

I spend the last hour or so in sheer panic and doubting my sanitiy as an email I was just reading disappeared from every mailbox I have here (I have 8 mailboxes in Thunderbird) . Also for whatever reason search is missing from the title bar.

The email was "archived" by Thunderbird inthe "Local Folders" I never use local folders as local folders is silly in 2026 imo. I have my own mailserver which is perfectly save and backuped and stuf I don't need yet another location were mail can hide.

Anyway that was a bit of a rant. This would not have happend if this sille ¨Local Folders" didn´t exist at all. But I seem unable to get rid of it.

How do I remove ¨Local Folders" from Thunderbird?

Please forgive me if this question was already answered and that I might have accidentally overlooked that answer.

I'm running Firefox 144.0 (64-bit) under Debian 13 (linux).

I want to configure Firefox to never restore any previous session when it starts up, irrespective of how Firefox was last exited.

Even if a running Firefox session was externally killed via some sort of system command or because of a reboot, I never, never, never, never, never, never, never, NEVER (!!!) want it to restart in any previous session.

I ALWAYS (!!!) want Firefox to launch with its default start page, no matter what.

I tried all of the suggestions that I have found on line about how this might be accomplished, but with each one of them, there are cases where the previous session was restored.

I repeat, I do NOT (!!!) EVER (!!!) want the previous session to be restored, under any circumstances.

Is there a way to accomplish this?

Thank you in advance for any suggestions, and again, please accept my apology if this has been answered and I overlooked that answer.

Hello, I was clicking random stuff and i accidentally turned off "Show notifications" in the syncronization thing

and now i can't turn it back on because to access that noticication setting i need the push noticication to send me there, but, you know.... I turned it off and i can't find any other way to access it. In the app settings from my phone's settings it only shows notification setting for any notification, not specific ones.

What do i do now? Please don't tell me i need to re- install it

I am using Thunderbird on Windows, and I want to hide the yellow “Your privacy is protected” notification bar but still have the privacy protection enabled.

I tried to use a userChrome.css in my Thunderbird profile; here is the path; (C:\User\AppData\Roaming\Thunderbird\Profiles\lz1po89m.default-release\chrome\userChrome.css). I also set toolkit.legacyUserProfileCustomizations.stylesheets to true, but the customization does not work.

If anyone can please help and/or advise me on the correct procedure or CSS selector for this version I would be very much appreciated.

Until a couple of days ago, I could single-click on a message and the contents would show up in a column in the same window. Now (presumably because of an upgrade to 156.0.1) this does not work. I have to double-click and then the message appears in a new window or tab ... which I then have to close. Very irritating! The earlier way meant that I could quickly scan through messages with far fewer clicks. Is this how it is now or is there a setting I could use to revert? On my other computer, I still have release 154.0 and I see the earlier (good!) behaviour! Help!

I've been using Thunderbird for about two months now and I just realized that Thunderbird (150.0.1) seems to be unable (or unwilling) to use some of the fonts that are on the computer (Windows 10, plenty of RAM and disk space).

Let me explain that I don't send a lot of emails, and most of the ones I do send are just a few lines so I had not had any reason to bother with the font -- the default font was fine -- until today...

Today my experience with fonts in Thunderbird was extremely disappointing. It started when I was composing an email and I copied/pasted some text from a web page into the email. Rather than treating the pasted text as simply text to have in the default font, Thunderbird put it in some strange font and size. This might have been Thunderbird's attempt to use the font from the website but neither the font nor the size resembled the text that I had copied/pasted. That was when I noticed that Thunderbird does not let you choose the actual size but only offers the choice to make text larger or smaller. Making the text smaller was sufficient for that particular time.

As I finished the email, I tried to sign my usual signature. Thunderbird lets you choose the font but once I had chosen the font that I routinely use for my signature, I discovered that Thunderbird totally ignores the choice that it just let you make. Instead of displaying the signature in the chosen font, it displayed my signature in a plain sanserif font.

I could live with a limited choice of fonts -- I have used another program where the only choices were serif and sanserif -- but I cannot understand why Thunderbird would offer a font choice menu that includes all my installed fonts when it actually only honors three choices. The only fonts reliably used seem to be some generic sanserif font that Tunderbird calls Helvetica/Ariel, a generic serif font that it calls Times and another serif font it calls Courier.

The dropdown menu lets me choose any of the fonts I have installed, some of them display properly while composing the email, others don't. If I send the email to another of my email addresses, Thunderbird displays the text the same way -- some fonts are correct and some fonts get replaced with one of Thunderbird's generic fonts.

I'd really like to have all my fonts available -- but that doesn't seem to be possible with Thunderbird so I guess I need to figure out which fonts Thunderbird is willing to use.

A vertical blue line/bar has appeared between the folder icon and the folder name. I can change the icon colour in properties for a folder but the blue bar stays blue. It is blue regardless of the state of messages in the folder (whether read or unread). Is it possibly related to the bug where Thunderbird tries to update every time I open T? But help says T is up to date. The blue line does not appear on my wife's Thunderbird running the same software version under a different profile. It is very annoying not knowing why it is there and what it means. Thanks

It appears that when I invert the sorting order of messages by Date, it does not affect the order of messages in a threaded conversation.

Is this deliberate or a known issue?

Any solution to sort everything with the newest messages at the top, that is: - Messages - And messages within a thread

Thanks!