http://www.webtuga.com/ , a portuguese site, plagiarised our logos in their new redesign. it looks like a general computing community site though, there don't seem to be a company behind.
I just checked out this site and didn't see anything related to Firefox, Thunderbird or Mozilla, so I'm closing this bug. If a problem with the site arises again, please submit the site using the reporting form at: http://www.mozilla.com/en-US/legal/fraud-report/. Thanks.