Rated 3 out of 5 stars

'''Note''' - If you use the quote feature and you want to see your signature above the quoted message and not at the default end of the message,
Go to Account Settings,
Composition & Addressing,
Change the first radio bar to "Start my reply above the quote"
Then change the radio bar setting (at my place signature) to say "below my reply (above the concept.
You must do this for each of your email accounts.

It would be nice if this sensible concept was the default but it is not.

As noted by another reviewer - Non of these Signature add ons work well. While this one will give you the right click option.
It does not give you the option to add a usefull choice of a signature that you have created.
All I could get was a muted couple of dashes.

This review is for a previous version of the add-on (0.2).