Hi, The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.'' To Reset Firefox do the following: #Go to Firefox > Help > Troubleshooting Information. #Click the "Reset Firefox" button. #Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish. #Firefox will open with all factory defaults applied. Further information can be found in the [[Reset Firefox – easily fix most problems]] article. Did this fix your problems? Please report back to us! If the problem persists, you can try to right-click the taskbar > '''Start Task Manager''', click the '''Processes''' tab > '''Show processes from all users'''. You can then search online for suspicious '''Image Name''' and try uninstalling the external Windows program behind the suspicious name via Start menu or Windows '''Control Panel''' > '''Programs and Features''', or at least make settings changes in the external Windows program. The dedicated security forums will also be helpful: http://www.bleepingcomputer.com/forums/forum79.html http://www.spywarewarrior.com/index.php http://www.spywareinfoforum.com/ http://www.wilderssecurity.com/ If you have games etc. that opens a page in your default browser, you can try to set another browser you are not using as the default.