Whenever I search Google from Firefox it takes me to search results in a strange language with "buscar" instead of "search" etc.
google.com/cse?cx=partner-pub-9609672093949948%3A2pdkvfm6u5y&ie=ISO-8859-
Any idea how to get it back to English?
Open the page (http://www.google.com/preferences?hl=en) there you can change the settings for the search results. If that does not work, try clearing your cookies.