Download Thunderbird Beta in your language

Be one of the first to try the newest features in Thunderbird. By giving us your feedback, you'll help us to refine the features that will be included in the final version.


Language Version Windows Mac OS X Linux
Albanian Shqip 40.0b1 Download Download Download
Arabic عربي 40.0b1 Download Download Download
Armenian Հայերեն 40.0b1 Download Download Download
Asturian Asturianu 40.0b1 Download Download Download
Basque Euskara 40.0b1 Download Download Download
Belarusian Беларуская 40.0b1 Download Download Download
Bengali (Bangladesh) বাংলা (বাংলাদেশ) 40.0b1 Download Download Download
Breton Brezhoneg 40.0b1 Download Download Download
Bulgarian Български 40.0b1 Download Download Download
Catalan Català 40.0b1 Download Download Download
Chinese (Simplified) 中文 (简体) 40.0b1 Download Download Download
Chinese (Traditional) 正體中文 (繁體) 40.0b1 Download Download Download
Croatian Hrvatski 40.0b1 Download Download Download
Czech Čeština 40.0b1 Download Download Download
Danish Dansk 40.0b1 Download Download Download
Dutch Nederlands 40.0b1 Download Download Download
English (British) English (British) 40.0b1 Download Download Download
English (US) English (US) 40.0b1 Download Download Download
Estonian Eesti keel 40.0b1 Download Download Download
Finnish suomi 40.0b1 Download Download Download
French Français 40.0b1 Download Download Download
Frisian Frysk 40.0b1 Download Download Download
Gaelic (Scotland) Gàidhlig 40.0b1 Download Download Download
Galician Galego 40.0b1 Download Download Download
German Deutsch 40.0b1 Download Download Download
Greek Ελληνικά 40.0b1 Download Download Download
Hebrew עברית 40.0b1 Download Download Download
Hungarian magyar 40.0b1 Download Download Download
Icelandic íslenska 40.0b1 Download Download Download
Indonesian Bahasa Indonesia 40.0b1 Download Download Download
Irish Gaeilge 40.0b1 Download Download Download
Italian Italiano 40.0b1 Download Download Download
Japanese 日本語 40.0b1 Download Download Download
Korean 한국어 40.0b1 Download Download Download
Lithuanian lietuvių kalba 40.0b1 Download Download Download
Lower Sorbian Dolnoserbšćina 40.0b1 Download Download Download
Norwegian (Bokmål) Norsk bokmål 40.0b1 Download Download Download
Norwegian (Nynorsk) Norsk nynorsk 40.0b1 Download Download Download
Polish Polski 40.0b1 Download Download Download
Portuguese (Brazilian) Português (do Brasil) 40.0b1 Download Download Download
Portuguese (Portugal) Português (Europeu) 40.0b1 Download Download Download
Punjabi (India) ਪੰਜਾਬੀ (ਭਾਰਤ) 40.0b1 Download Download Download
Romanian română 40.0b1 Download Download Download
Romansh rumantsch 40.0b1 Download Download Download
Russian Русский 40.0b1 Download Download Download
Serbian Српски 40.0b1 Download Download Download
Sinhala සිංහල 40.0b1 Download Download Download
Slovak slovenčina 40.0b1 Download Download Download
Slovenian Slovenščina 40.0b1 Download Download Download
Spanish (Argentina) Español (de Argentina) 40.0b1 Download Download Download
Spanish (Spain) Español (de España) 40.0b1 Download Download Download
Swedish Svenska 40.0b1 Download Download Download
Tamil (Sri Lanka) தமிழ் (இலங்கை) 40.0b1 Download Download Download
Turkish Türkçe 40.0b1 Download Download Download
Ukrainian Українська 40.0b1 Download Download Download
Upper Sorbian Hornjoserbsce 40.0b1 Download Download Download
Vietnamese Tiếng Việt 40.0b1 Download Download Download
Welsh Cymraeg 40.0b1 Download Download Download