Rated 3 out of 5 stars

If you set a default signature, Thunderbird's default font does not get used! I like my messages to appear in a sans-serif font like Arial, so under Thunderbird preferences (then Composition->General), I changed the HTML font to Helvetica, Arial... but this font does not get used if I've set a default signature.

Please fix this bug :-)

This review is for a previous version of the add-on (1.6.1).