Q: I attempted to eliminate an unwanted Yahoo toolbar on my Firefox browser. Now, I’ve lost my browser bar, menu bar, and the standard buttons toolbar. I can’t do anything with Firefox. I tried System Restore. I also tried to drag the screen down, but nothing will move. How do I put the normal toolbars [...]

Q: Whenever I clicked my browser’s New Tab button, the new tabbed page used to show thumbnail views of my most visited Web sites, so I could select one at ease. This feature has now disappeared. Can I get it back or have I done something to banish it forever? A: No, you didn’t do [...]

Q: While searching for holiday sales using Internet Explorer, a Web site sent me pop-ups saying my computer needed to be scanned for viruses, then began scanning it. What’s going on? Is my computer safe? A: You’re seeing the result of a Web site that’s been “hacked” or compromised. Web sites, just like computers, can [...]