At the moment of writing this CookieFirst supports 44 languages. On request we could add new languages within a week.
The current list of languages is:
Albanian
Arabic
Basque
Bosnian
Bulgarian
Catalan
Chinese
Croatian
Czech
Danish
Dutch
English
Estonian
Faroese
Finnish
French
Georgian
German
Greek
Hebrew
Hungarian
Icelandic
Indonesian
Italian
Japanese
Korean
Latvian
Lithuanian
Macedonian
Malay
Norwegian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swedish
Thai
Turkish
Ukranian
Vietnamese