Search Engines Not Working?

Today I clicked on Mozilla Firefox. Out of the blue the screen was completely blank except the top part with the address bar. So, I tried Google Chrome and Internet Explorer. They both have the exact same issue as I described with FireFox, except Chrome and IE say the page can't be displayed. Another thing I noticed is that now Chrome and IE open up 3 pages whenever I click just once. Troubleshooting couldn't identify the problem and my AVG AntiVirus program couldn't detect a single threat from a whole system scan. I know it's not an internet issue because I could still play Minecraft on a server. I've tried everything (examples- safe mode, clearing cache/history, rebooting) I can't uninstall and reinstall the programs because it keeps saying page can't be displayed! I have no idea what the problem is if anyone knows please help. Also does anyone know a Tech support number I can call?