Rated 3 out of 5 stars

This extension would perfectly compliment Thunderbird by providing a much needed feature if not for one glaring flaw: When switching between signatures in a reply/forward, the signature is placed beneath the old quoted message, and can not be changed to appear beneath the new message being drafted. Thunderbird 45.8.0 has this feature already (Tools->Composing & Addressing->Automatically quote...->.and place my signature...) so it would be excellent if this extension were to follow suit.

Until then I'll be removing the extension, but would gladly re-install it and change this review to a glowing 5 star one if this much desired feature was implemented.

This review is for a previous version of the add-on (1.6.15).