You can read what the POODLE attack is here.. http://en.wikipedia.org/wiki/POODLE

You can test your browser here.. https://www.poodletest.com/

You can turn off SSL3 in your browser using these directions https://zmap.io/sslv3/browsers.html

If you are using older browsers such as IE6 you need to either upgrade the browser (best idea) or turn on TLS 1.0 support