Instead of getting page can not be displayed message I get a blank page with Web Guard in the tab ( first though was this may be part of Mozilla's web security )

After further inspection ( show source ) I see a distributing <SCRIPT TAG>

see (See Fig. 3)
at the following address
http://www.avlogics.ca/articles/acce...e-systems.html

To my knowledge I have not installed this and it is only rendered when you mistype a known link

I'm doing some Dev work on this machine.

so when I open up http://localhost:333/dev1 to my local machine (work away)

Now this is when it appeared ( Imake a typo in the address)

testing site
http://brokers.thruhere.org

I got the above Web Guard in the tab thing ?
on inspection of the source page shows the exact thing as

see (See Fig. 3)
at the following address


http://www.avlogics.ca/articles/acce...e-systems.html

Any info about this would be helpful.

Thanks All in advance

Did you build this machine or install the OS yourself? Does anyone else have access to this machine? Seems to me like someone installed this to protect you from unwanted content.

Sorry for the late reply as this has stopped happening, in the since I can not recreate the events with firefox ?
This a stock Install Fedora 14 x64

To my Knowledge no one but my son's have access to this machine
Both of the accounts on the machine have never been used (Teenagers want to play games) logs show that these account have never been used.
firefox plugins
Iced Tea 1.9.3, nspluginwrapper (flash)1.3.0, Shockwave FLASH 10.1 r102
Firefox Extensions
Firebug 1.6.1, NewTabURL 2.2.0