LINK / CITE ADD TO WORD LIST. adjective. The definition of precious is something of great value or that is greatly loved. 1  An example of precious is priceless jewelry.
However, we can always point to the latest version under a particular category. The Current supported official version, which is the generally distributed and widely available latest version of Firefox, is Firefox 38.0.5. This version had an official release on June 2nd, 2015.
What's the latest version of Firefox? The latest version of Firefox is: 53.0. How to upgrade Firefox. If you already have Firefox but want to make sure that it's up to date, follow our guide which will show you how to trigger Firefox to check for updates: How to update Firefox. Downloading Firefox.