You most likely have a browser hijacker. What is a browser hijacker? A fun little guy that makes your web browser go were it wants it to. This is called redirecting, your browser, and there is something that you can do about it. You can get rid of the hijacker and get your browser back. Here is how to do it. Download and run Malwarebytes and that should clean it out. However it will probably redirect you and not let you download it. To get around that you can either boot into safe mode or you check the settings on your browser to make sure it is not going through a proxy which is a common way of making your browser redirect.
To Check proxy issue:
For Internet Explorer:
Click on tools -> internet options -> the connection tab of the box that pops up -> the lan settings button and then uncheck the box to use a proxy.
For Firefox:
Click on Tools -> options -> The advanced Tab at the top of the box -> The settings button -> then make sure the No Proxy button is selected.
This should enable you to download malwarebytes and remove the problem.
Hopefully that will make you able to go where you wish once again. Happy browsing.
