To format your text as a code block, simply use backticks (`) between the desired text. Quote Block: The Quote Block is useful for responding to a specific part of a previous message.

Message Formatting in Thunderbird. With a dash of creativity and Mozilla's Thunderbird desktop email program, you can compose professional looking business emails that should impress your recipients.

Block quotes: Users can block quote text to highlight it and make it stand out in longer messages. Type the “>” symbol followed by a space before the text you wish to highlight to use this format.