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In Thunderbird, how can I stop text in the previous emails in a string turning blue?

I have looked everywhere in Settings where colour is mentioned and everything is set to black text on a white background. Nothing is set to blue.

I do not want to see blue text anywhere.

Please advise.

Hi, I dont know what setting I have accidently changed but before I used to double click a new message in my inbox on local folders and now instead of reading it full screen now it wants to send it as an email message to someone!

Any ideas to put it back to just read the email and not compose a message with it?

Thanks.

I dont remember having this 'new message template' thing before when I right clicked on a message in my inbox , maybe thats what the issue is?

When I inadvertently press CTRL + R when entering text, it is VERY frustrating because the window refreshed and I loose all of what I typed! Is there some way to disable the CTRL + R combo so the window does not refresh?

Thanks

I'm trying to stop Firefox from restoring tabs after I restart my OS. So far, I've done the following:

• Disabled `Startup > Open Previous Windows and Tabs`
• Disabled all extensions
• Confirmed I do not have a `user.js` file
• Set `browser.sessionstore.resume_from_crash` to `false`
• Set `browser.sessionstore.restore_on_demand` to `false`
• Set `browser.sessionstore.resuming_after_os_restart` to `false` (It was already set this way.)
• Set `browser.sessionstore.max_resumed_crashes` to `0`
• Set `privacy.clearOnShutdown.openWindows` to `true`
• Set `browser.sessionstore.max_tabs_undo` to `0`
• Set `browser.sessionstore.max_windows_undo` to `0`

(I've since reverted the last two and the extension changes after they didn't work.)

So far, Firefox will not restore tabs on application restart (manually closing and relaunching) or on crashing (after sending SIGTERM/SIGKILL), but it still restores tabs after restarting the OS (if I allow the OS to kill it during shutdown). I've seen a couple suggestions to disable history completely, but I do occasionally refer to my browsing history, so I'd prefer a less-drastic approach. Ideally, I just want Firefox to treat the first launch after a shutdown as a normal launch and not apply any special behavior. Any help would be much appreciated!

System: Fedora 42 (Workstation Edition) Running Firefox 144.0.2 on Gnome 48.6-1.fc42

After installing thunderbird, It takes me hours to figure out that my fonts are too small because of one value in Settings > General > Language & Fonts > Fonts > Advanced > Fonts for Other writing systems gives a too small number.

It seems insane and I don't think users can easily get there. Maybe some users want to set different fonts for different languages and the "Fonts for ..." is for them. However, for most users who just want to change their font size, I don't think it's a good experience to going so deep and find an option in the loooong "Fonts for ..." list.

So please give users a simple option where I can just set my font size without such pain.

I know there's a font size option in TB menu but it doesn't work as expected. In my case, the font size shown in TB menu is 16 while the font size of my plain text emails is 12. And 1. email font sizes will change to TB menu size as long as TB menu font size is not 16. For example, when changing TB menu font size 15 -> 16 -> 17, email text just suddenly goes from 15 to as small as 12, and then from 12 to 17. 2. email font size seems changing with the TB menu font size. However, email text font size will go back to what it was when open another email.

Thunderbird 128.14.0esr on Debian 13 KDE. Email is in Classic View.

The mail headers take up far too much space.

Here's an example of the problem: http://map.atownsend.org.uk/tmp/Screenshot_20250829_150825_2.png . As you can see, about 50% of the UI is taken up by headers. I like the general layout (tree at the left, not included in screenshot, list of messages above and the message itself below) and I like the contents of the headers (I don't want to display fewer; I'd just like them to take up less space).

Changing the font via edit / settings / font / size has no effect on the headers (it may be changing the size of the text within the message, but I can't really see enough of that to be sure).

How do I change the font within the headers to a different, smaller, value?

Context: I'm moving from Outlook to Thunderbird so still adjusting. Bear with me.

I prefer to view all incoming messages initially as plain text. I believe this prevents tracking-images and other detritus from coming in with the message. So with Outlook, everything come in plain text; I can change the currently displayed message to HTML when I trust the source and want view it that way. It does NOT affect the other messages.

Now, with TB, it seems that when I choose the View / Message Body As / Original HTML then all messages viewed subsequently are displayed as Original HTML.

I've looked around for a little while and don't see the how to default all messages to Plain Text and apply the View-as-Original-HTML to only the currently-displayed message.

Is this possible? Thanks for your help, Mark

This is what my messages look like . How do I get every line after "DATE" to not print like it used to. I am on version 115.10.1 My email is Fredwise@earthlink.net

115.10.1 From accounts@firefox.com TO FREDWISE@earthlink.net subject Use 950828 to confirm your account DATE Wed, 4 Mar 2026 02:08:02 +0000 Message ID <0101019cb69a2a0b-d2e09f40-9362-43dd-8164-9c6e0ff4882d-000000@mail.firefox.com

ETC for 30 or 40 more lines

Recently installed a new version, after our old PC died. BUT now, when I do 'save as' of an email the system automatically saves it as a PDF??? Unless I select save it as a Thunderbird, a tedious business and extra key strokes. How can I get the system to save an email as an email?

Thanks, Brent Haines

When I write a meesage, the send button and all the other buttons (e.g. file, edit, insert.... cannot seen. What has happened. How do I restore them so I can send and write messages?

The keyboard shortcut to take screenshots [Ctrl + Shift + S] used to work a few weeks ago but it has stopped working for quite a while now. Doesn't work on any site, I can only create screenshots by right clicking and pressing the button manually.

These are technically two separate issues, but both pertain to functionality of the mouse and keyboard. Whenever I right click to bring up the menu, the options (despite being functional) do not appear in the menu proper. Instead there are just empty buttons. In addition, certain hotkeys aren't working at all. Ctrl+C and Ctrl+V to copy paste are doing fine, but Ctrl-T and Ctrl-W to open and close tabs respectively do nothing. Neither of these issues were happening yesterday.