Hi everyone. I realise that this isn't strictly a Firefox problem, but since I get the error in the browser itself, thought I would ask here. Ever since I installed a trial of VMware Workstation 8, FF has been giving me SSL errors relating to certificates when I visit websites. It doesn't seem to be one particular site, and unfortunately I didn't copy the exact message. It was something like the following: Certificate is not valid for https://domain:443: only valid for VMware. Unlike the standard warning, however, this text appeared in a dialog, where as normal certificate errors usually appear as a web page. In the URL box, I've pasted the address of one of the sites that I was browsing when the message appeared. Thanks for any help. Elliott.