I'd like to increase the font size used in Thunderbird when replying to an email in text format. I don't see any such an option in Tools/Options. Is there any way to set this?
The following will set the size on your
Then head down to the Fonts & Encodings section and click Fonts...
The Fonts & Encodings dialog will pop up.
Head down to the Monospace line and adjust the Size (pixels) on the far right.
Click OK on the dialog. Then click OK on the Options popup.
Now when you reply to an email, and you have the default mode to send out in
If you want to read in a larger font, adjust the value in the Minimum font size... setting of the Fonts & Encoding dialog.