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I'm trying to do the exact opposite of How To Make Thunderbird Compose Mail With "Body Text" As Default?. So my current default setting for composition is "Body Text", but I want it to be "Paragraph".


Just doing it the opposite way of the accepted answer doesn't work: If I select Format⇒Paragraph⇒Paragraph (from the menu bar), it does the formatting for the current e-mail; when I open another message, however, it starts out with "Paragraph" selected, but as soon as I type the first letter of my e-mail, it changes to "Body Text".

Is this a bug? Can anybody reproduce this behavior?

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TB 9.0.1 does the same for me. – pnuts Oct 9 '12 at 23:16
I asked a similar question on mozillazine in 2011. Still outstanding in 2014. – palswim Dec 2 '14 at 20:37

I have found that to set the default to "Paragraph" or "Body Text", you need to navigate from the main menu:

Tools->Options->"Composition" region -> "General" tab

In the HTML section, find the option for "When using paragraph format, the enter key creates a new paragraph"

Select that option if you want "Paragraph" as the default. Deselect that option if you want "Body Text" as the default.

I am using Beta version 45.0 of Thunderbird

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Yep, looks like they added this in Thunderbird 45.0. – palswim May 23 at 22:59

In Thunderbird 45+ you could change between "Paraghraph" and "Body Text" style from

Tools -> Options (Preferences) -> Composition -> Check/Uncheck the following option:

"When using paragraph format, the enter key creates a new paragraph"

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