Does this occur only in firefox or is it in IE as well

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF


:Commands
[CREATERESTOREPOINT]

:OTL
[2013/05/29 18:34:21 | 000,003,723 | ---- | M] () -- C:\Program Files\mozilla firefox\searchplugins\safeguard-secure-search.xml
O2 - BHO: (no name) - {56E4076B-A42B-4745-BA35-34DA8AC4C2F2} - No CLSID value found.
O3 - HKU\S-1-5-21-894513301-464839021-2148896484-1000\..\Toolbar\WebBrowser: (no name) - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - No CLSID value found.
O4 - HKLM..\Run: [] File not found
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} http://java.sun.com/update/1.6.0/jinstall-1_6_0_29-windows-i586.cab (Reg Error: Value error.)
O16 - DPF: {8FFBE65D-2C9C-4669-84BD-5829DC0B603C} http://fpdownload.macromedia.com/get/flashplayer/current/polarbear/ultrashim.cab (Reg Error: Key error.)

:Commands
[resethosts]
[emptytemp]
[Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.