Rated 5 out of 5 stars

I just upgraded to the most recent SeaMonkey and the most recent ThunderLink v0.05 gives and error message from SeaMonkey, when I attempt to load it. If it's compatible with Thunderbird I thought it should be running in SeaMonkey as well? Or not?P.S.: I'll be sure to come back and add more stars, when it's up and running. Seems to be just what I've been looking for ...

This review is for a previous version of the add-on (0.05). 

I'm not surprised by the fact that it doesn't work out-of-the-box. Didn't test it with SeaMonkey. In fact, I only now read up on what SeaMonkey actually is :)
As you can see from the plugins description, it relies heavily on the underlying OS for Firefox->Thunderbird communication. How this can be achieved when both applications run as one might be similar - or totally different. I'll have to look into that.