The problem started with getting redirected when we searched with Google. So we tried other search engines which worked for a little while but now it doesn't matter which search engine we use. If you go back to the original search after you are redirected a time or two you can finally get to the website you want. But now also when we try to go to the Google website it pops up: "Unable to connect: Firefox can't establish a connection to the server at www.google.com. The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your computer's network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web."
I have downloaded and run Malwarebytes Anti-Malware which helped another issue we had with windows opening up whenever you clicked on a link but we still have the redirect virus (or whatever it is) and can't access Google.
Your help would be greatly appreciated!