Although I'm using Firefox 16.0.2 here, yours should be similar. Open Firefox, then click on "Tools" in the upper left, then choose "Add-ons" from the menu. Once that opens up, click on the "Extensions" tab and look for the "Ask.com" add-on.. If there, delete it. Next, click on the "Plugins" tab and look for the "Ask.com" listing.. If there, delete it as well.
Once that's done, then download, install, update, and run a full scan using the free Malwarebytes spyware removal tool from the link below. Remove anything it finds.
And just a note: If you've recently installed the new Avira free antivirus, it may have included the Ask.com toolbar in your browser by default.. In order to remove it, you'll need to use the Control Panel-Add/Remove Program section, select the Avira program, choose "Change", then "Modify", then UNCHECK all the "Web Protection" and "Avira Search Free" sections.
Hope this helps.
It looks like the f**kers at ASK have finally buried their malware where no one can dislodge it! With the latest download of Firefox 3 on my XP system, ASK comes up every time Firefox opens. None of the fixes I've found on the net will work. There is no ASK program in my Add/Remove programs list. Even the little tool the ask people themselves offer can't find it. It doesn't show up as malware in my scanners.
PS. It is criminal for reputable software providers to include this virus under the covers - that means you, CNET download!