terra.im is a kind of browser hijacker that may install on your PC together with some recent bundled downloads. This is very annoying. It change browser settings and stop you resetting them again. terra.im replaces your new tab and keeps redirecting your browser to terra.im. It is very important to get rid of terra.im from homepage, or it can further more damage. Apart from the removal video above, you can visit:http://www.pccaretips.com/blog/steps-to-get-rid-of-terra-im-from-chrome-ie-firefox.html for more detailed removal information.