I keep getting a new tab asking me to update Firefox & JAVA but I already have the most current versions. I also am getting ads on the homepage

Question

After updating the most current Firefox I now get Ads on the home page that I can't get rid of even with the "X" box on the window. I have to shut down Firefox and start over to get anywhere. I didn't have this problem before the update.
I also had a change to the new tab/page feature. I used to click for a new tab and a series of boxes would show where I've been so I can perhaps select one. That feature has changed and I now get a tab/page that says it is owned by AVG. Where is my old page

Answer 1

If it opens in a new tab it is likely fake.
Can you post a link of it, you may also want to check for malware.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP 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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