Skitch and facebook - paste function in private msg within Safari

[pataslo 0]

Dear All,

I just wanted to share a screenshot with a friend on Facebook, but copy-paste from Skitch to FB did not worked.
I did not use the Sharing function within Skitch, because I do not want to setup FB acc on OSX just because of this.

Any ide how can I copy-paste content from Skitch to FB private msg?
Does it maybe work with other browsers, and sux is just with Safari?

Thx.