Hello and sorry that your question was missed.
Quite often you will have AdBlock or other blocking devices set on F/fox or Chrome.
This is a safety measure to prevent you from visiting certain sites.
Your Antivirus settings may also block some content for obvious reasons.
I personally use WOT as a guide to programs and sites, and it will throw a large Warning sign over certain pages.
Check your security settings and you may just have them a little bit high for certain areas.
Also Parental Guides can block some of the unwanted pages.if turned on.
Next Reset your Hosts File here http://go.microsoft.com/?linkid=9668866 <=
Click on the link, click Run and follow the basic directions.
This is the basic Microsoft version of blocking basic "bad sites".
If there are certain sites, please ask and we will check them for you.