Mozilla Firefox 4 for Windows, Mac and Linux is now available in more than 70 languages. Millions of users are testing Firefox, which will be automatically updated to the new version.

“Testers are encouraged to check out the Web O’ Wonder in order to see the future of the Web with cutting edge demos that showcase the incredible online experiences developers can now create. Developers can submit their own demos to the Mozilla Developer Network Demo Studio,” Mozilla Firefox Official Blog said.

Firefox was built with help from its contributors and millions of beta testers. The team has fixed more than 8,000 bugs since the first beta release of Firefox 4.