Somebody reported my site as "unwanted"?

Is something fishy with my machine, or did anybody else also get the WARNING about my site from Firefox?!
What on earth is going on now?
Anyway, strange stuff. I hope, this will somehow clear up again or was just a fluke for me here?!

What on earth is going on now?

Anyway, strange stuff. I hope, this will somehow clear up again or was just a fluke for me here?!
