That’s right, Mozilla Firefox 50.0 is now officially available in the repositories of all supported Ubuntu OSes, including Ubuntu 16.10 (Yakkety Yak), Ubuntu 16.04 LTS (Xenial Xerus), Ubuntu 14.04 LTS (Trusty Tahr), and Ubuntu 12.04 LTS (Precise Pangolin), and you can use it right now if you update your system. However, you should not get all that excited because Firefox 50.0 is not a major update. The web browser ships only with native Emoji fonts support, something that most of you won’t use anyway, support for cycling through tabs in the recently used order using the Ctrl+Tab keyboard shortcut, and support for searching whole words.