So apparently, the secret is out. […] I suspect that my server was compromised, and I am currently using my contacts to find the culprit and bring him to justice.

Addict3d.org /.

A critical vulnerability was identified in Mozilla Firefox, which may be exploited by remote attackers to execute arbitrary commands. […] The FrSIRT confirmed this vulnerability in Firefox version 1.0.3.

“Mozilla Firefox »Extensions« Remote Code Execution Vulnerability”
FrSIRT /.

There was a server side change that prevents the exploit from working on UMO. You only need to be concerned with sites on your install software whitelist.

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