Whatever it is, its not from mozilla, and likely is malware waiting to happen.

Check for malware with all programs below.

• Microsoft Safety Scanner
• MalwareBytes' Anti-Malware
• TDSSKiller - AntiRootkit Utility
• Hitman Pro
• ESET Online Scanner

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

WOW! Thank u!!! Very helpful. Never had a 'problem,' but looks like I REALLY could have! Please tell me though, what is it exactly - and how do they have permission to so prominently display the famous: 'Fire-Fox Emblem?'

No rush. Should this 'site' be reported?

Thank u!

Charlie  :-)

You can write a bug report at bugzilla.mozilla.org to get the addon blocked.

Thank you so very very very much! Have a super day and weekend!!!! All the best...Charlie  :-)

I have this problem too. I note that while tab is loading, I get a reference in lower left or right corner of screen to a site *.trustism.net or *.turstism.net, where * is the site I am currently viewing.

Maybe you can write a bug report at bugzilla, but I can't. Even tho I changed my password, it will not accept the new one.