If you are do this rarely, you can use an online service such as Google Translate - http://translate.google.com/ If you do this on a regular basis, there are add-ons that can assist. The [https://addons.mozilla.org/en-US/firefox/extensions/language-support/ Firefox add-ons Language Support] section lists quite a few, a popular one is [https://addons.mozilla.org/en-US/firefox/addon/2444/ FoxLingo Translator].

You can also use a keyword (gtw) bookmarklet to translate web pages. <nowiki>http://translate.google.com/translate?hl=en&ie=UTF-8&sl=auto&tl=en&u=%s</nowiki>