Rated 4 out of 5 stars

Seems like SI+ v1.11 worked in Linux Tbird 45 & worked well in Vista;
starting in Linux Tb 52, when try to add a SI Plus image using its drop menu, Tb pops a blocked image message at the bottom of composer window.

That message has a preferences button, that would allow unblocking (apparently) only the *specific* smilie file selected. Guessing a new Tb security feature?

But, Tb 52 allows me to drag / drop an SI Plus file directly from its folder (Linux) to the compose window. That doesn't make a lot of sense, since by either method, the location of the file being added is the same.