Hey pobraatz,

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 these free programs to scan for malware, which work with your existing antivirus software:

• Microsoft Safety Scanner
• MalwareBytes' Anti-Malware
• Anti-Rootkit Utility - TDSSKiller
• AdwCleaner (for more info, see this alternate AdwCleaner download page)
• Hitman Pro
• ESET Online Scanner

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

-Curtis

http://www.bing.com/search?q=what+is+htmlverifier.com

A validator is a computer program used to check the validity or syntactical correctness of a fragment of code or document.

https://addons.mozilla.org/en-US/firefox/addon/html-validator/

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 23+

Sent via private mail; pobraatz said

Thanks Fred for your help. I couldn't find the offending extension in my list of extensions on FF and so I deleted FF36.0 and reloaded FF35.0. This seems to be working fine and so I'm going to stay away from FF36.0 for the time being. Thanks again, Paul

Please post your responses in the forums. This way, others can help or those needing help will know what is going on.

Not a bad idea, a lot of users have been having problems with 36.