The Facebook inline Language translation technology is differs from Google language translation.Vadim Lavrusik on Facebook said,"Last night we launched a new translation tool that enables people to translate posts directly inline on Facebook Pages through Bing Translate. With this service, it will be even easier for people to enjoy public Page content on Facebook regardless of the languages that they know. If a comment is posted in another language, you'll see a "translate" button. "
See also : Language translation in Mozilla Firefox | Language translation on Window application
The Facebook translation wizard is available only on community or Facebook fan page, but not yet available on Facebook profile yet.If you are administrator of any Facebook fan page, you can enable Facebook translation in your Facebook fan page by clicking on Setting tab, Where you will see options as shown in the image below.
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