Recently opened sites grid in new tab has disappeared, how to fix?

Question

So I recently installed a VLC player, and after the download, I noticed that the installation had also snuck in a bunch of other programs (I assume were viruses). When I opened up Firefox moments later, I realized that when I clicked to open a new tab, the grid wasn't there, and all the sites I had pinned were gone, I only saw a blank white window. I'm not sure whether there is a connection between the installed player and my Firefox problem, all I know is that the problem occurred moments after the player was installed.

Answer 1

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try some of the following programs to scan for malware:
* [http://www.malwarebytes.org/mbam.php MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://windows.microsoft.com/MSE Microsoft Security Essentials] (A good permanent anti-virus if you don't already have one)
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
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