<html> <head> <meta content="text/html; charset=windows-1252" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <div class="moz-cite-prefix">So you've tried Edit > Preferences > Composition ? Then in the HTML section, changed Size from default of medium to large, x-large or even xx-large? Works for me. Do note though that it only takes effect in new emails that you start after changing the setting. Previous emails (eg in Drafts) will still use the previous size in effect when they were created. Regards, Chris On 14/05/16 07:59, Jan Greeff wrote: </div> <blockquote cite="mid:5736BECF.7030708@verslank.net" type="cite"> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> Good day all, A frustrating thing about Thunderbird mail (which I am running on Ubuntu 14.04) seems to be the fact that you cannot set the default font size of the plain text email messages that you type. I have been Googling around and I find the same gripe all over and no solution to date. If I want to change it, <big><big>I have to do it manually every time. </big></big> Does anybody in the community have a solution for this one, please? Jan <fieldset class="mimeAttachmentHeader"></fieldset> </blockquote> </body> </html>