Safari in my MacBook Pro is corrupted. How can I fix it?

What happens when you try Safari?

Giving details will help.

1. Power Cycle

Power off the router. Unplug it from the wall. Wait a while.

Plug it back to the wall. Power the router on. Wait until all the lights are lit properly.

It will take a while.

Restart the computer.

2. Start up in Safe Mode.

http://support.apple.com/kb/PH11212?viewlocale=en_US

3.Turn off Extensions, if any.

Safari > Preferences > Extensions

4. Turn off proxies, if selected.

System Preference > Network > Advanced > Proxies Tab

Under "Select Protocol", uncheck any box if selected.

Click "OK" then "Apply"