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My emails that are in Sent or All Mail are all out out order by date - random - different dates. I don't know what happened? I expect to see the most recent first - just as i do in my inbox. It is ok. They are fine in Gmail - where they come from. Thanks

I have used Thunderbird for a long time?

Is there a way to completely opt out of having AI in my browser?

I find recent implementations of AI in Firefox quite frankly disgusting. I don't want to see it, I don't want to use it, I don't want it suggested to me. Not only it's unneeded, but also all your LLMs are a waste of electricity, fresh water and are a threat to my privacy, and we don't even mention all the legal trouble AI scraping creates.

I need a switch to completely remove any mention of LLMs/AIs in my Firefox browser unless I search for it on the internet (and, trust me, I wont; I'd prefer to continue thinking for myself and having real people with skills and talents do things if I can't do them myself) and have none of them touch me in any way. Kill that thing with fire.

Ideally Firefox, one that advertises itself as a secure browser with respect towards its users, shouldn't have any mention of AI in the first place, you know. But since companies are in a craze about it for some unknown reason (trust me, we don't want it; if I want to be lied to, I'd go to a paediatrician to talk about my symptoms, not a language model I can't trust with my data), at least give your users an option to get that awful thing out of their browser it they want to.

Have a nice day. <3

I can't seem to find the way to set or adjust (vertical) line-spacing in the body of the message. The lines "collapse" on each other. (see the attachment) I have unchecked the "Use paragraph format..." checkbox. Can't adjust it with the small / large "T" controls on the formatting bar; and I haven't found any setting (or combination of settings) to control or adjust this attribute. FWIW, it happens both when I paste-in text and when I type-in the text. Suggestions?

A few weeks ago, I had to re-add my email account in Thunderbird and took the opportunity to switch from POP3 to IMAP. I am generally familiar with the synchronization behavior associated with IMAP. However, I did not pay close attention to the Sent folder at the time, and I have now noticed that there are almost no sent emails stored on my local computer. When I checked with my email provider (freemail.web.de), I discovered that the retention period for sent emails is limited to 30 days. Apparently, the sent emails (in the “Sent” folder) are synchronized with the server and are therefore deleted from my local system as well once they are removed on the server.

​I have now increased the retention period on the server, but I would still like to clarify the following points:

• Is the synchronization of the Sent folder in fact intended to mirror the server folder (i.e. including the deletion of emails)?
• If so, is it possible to configure the synchronization to be one‑way only (i.e. that new emails from the server are added locally, but emails that are no longer present on the server are not deleted from the local Sent folder)?

-- Thunderbird 115.18.0 (32-bit) on Windows

Most of the time TBird defaults to TNR as the default font. I have selected Aptos as the default for composing messages and replying. It's pretty annoying. Things worked OK for a while...until they didn't. Did an update mess things up?

When I open Write mode the font is too small and it doesn't change when I change the size to Large or the larger ones in Settings/Composition/HTML Style/Font/Size.

Thunderbird 140.7.1esr (64-bit) Windows 10 Home.

Thanks for your help,

Frank

I got the "Donate" screen covering my messages; I donated but the Donate screen still mostly covers my screen. The part of the screen I can see has a different view (layout?) from what I have been using.

Hello! It seems Thunderbird emails are suddenly being 'threaded'. It is causing great confusion in my office.

I need to see each email from a person separately in order to find them easily and also to reply to each one at the time it is received.

Can someone please explain in very simple non-techy jargon:- a) How I 'unthread' messages already threaded AND b) How I stop any new ones being threaded in the first place.

Thank you Tylex

Hi Mozilla,

i stumbled upon an extension called 'unhook' which allows to hide a wide selection of content from my view on youtube. This is amazing! Now I can watch my favourite channels without annoying stuff on every side. I would really appreciate to have something of this kind as a native feature in Firefox. So please consider this a suggestion right away or point me towards the place where I can suggest this feature correctly - if there is such.

Thanks a lot for Firefox!

email address; [edited]@btopenworld.com

Dear Sirs' Happy New Year I have a problem that I have had no luck in resolving via the Thunderbird Help option. My problem is that recently I have been unable to receive any images on all my mail which I receive within my Inbox. I have chcked the mail within Thunderbirds Server (ie BT), and all the images do appear on all the mail at this source. I would be most grateful if you could please help me in this matter. Kindest regards, Brin Benger

Hi, I just started using Thunderbird for Android and - so far - I am loving it. One thing I cannot seem to figure out is how to change the color scheme of the widget. Is it even possible to change it? I would like to set it to use the same dark theme I have for other widgets, but the Thunderbird widget stubbornly keeps its white background.

I copy/paste emails a lot for my job, which needs to include from, sent, to, cc, bcc, and subject:

From: Sender <sender@email.com>; Sent: Wednesday, January 21, 2026 at 11:27 AM EST To: John Doe <johndoe@email.com>; Cc: Jane Doe <janedoe@email.com>; Bcc: Subject: Email Subject

Currently, I am using the plugin ReplyWithHeader, which will produce this style of header on reply/forward, but is there a way to display this in the email body on view, without me having to reply/forward to produce the headers in the email body?