Firefox is a widely localized web browser. The first official release in November 2004 was available in 24 different languages and for 28 locales, including British English, American English, European Spanish, Argentine Spanish, and Chinese in Traditional Chinese characters and Simplified Chinese characters.[126] As of December 2020[update], currently supported versions 84.0.1 and 78.6esr are available in 97 locales (88 languages).[19]