For last two days, when i try to open certain websites (blogs) they are not opening in Firefox and IE 10, these webites r not opening. these website are active and I am getting daily emails. When I click on links (in email or from Facebook), the links take me to a page saying ""404. That’s an error.The requested URL was not found on this server. That’s all we know. "" I tried to open link: "http://www.sarahassansblog.com/2013/04/abbamart-beau-make-makeup-brushes-review.html#.UX0-DEqrIUg" through facebook and through my email link but the error page appears saying " 404. That’s an error.The requested URL /2013/04/abbamart-beau-make-makeup-brushes-review.html was not found on this server. That’s all we know. " on the other hand, when i type the URL of any of those websites in browser (Firefox and IE both), the Google page " www.google.com.pk". I have tried to fix it by clearing cache and cookies and using antivirus several times but its not working! Can anybody help me in this regard? here is one example i m trying to open: www.sarahassansblog.com