The Google Translate (gTranslate in Firefox) browser extension that allows the user to translate a web page's language when it is not in the user's primary language. It supports 100 languages and its website has 500 million people daily.
Google Translate debuted on April 26, 2006 as a website. It was originally an SMT. It was extremely bad, also. Since SMT uses perdictive algorithms, Google Translate was very poor. However, In February 2010, the browser extension was created.
As of November 15, 2016, Google Translate went NMT! It is now really good and translates 500 million words a day.
Google Translate is already installed on Chrome, so the browser extension is not required for Chrome users.