I can select the mail (view plain text / plain html / original html) for an address book.
Mails from unknown senders can be displayed as plain text only.
Mails from known senders are displayed in original html.
Thunderbird
I also use the extension and like it very much, but the function should be in TB itself in my opinion.Also I would like to allow html mail view for known contacts. Then I would have to use the quick toggle less. The proposal I have submitted but is n...