Thunderbird: Reply in HTML Format

Thunderbird has a little problem about writing mail in HTML or TEXT format. Once you configured HTML or TEXT format, you cannot switch between them on the fly. So, this is quite nice tip if you want to choose on the fly if write an HTML or TEXT mail. If you would like to send in HTML format, hold the SHIFT key while pressing the REPLY TO button (or the WRITE NEW MAIL one). This will allow you to compose one HTML mail even if you configured your THUNDERBIRD to compose always in TEXT format — via San Baldo