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.
Firefox Developer Tools. Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile. Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile. Install Firefox Developer Edition. Firefox Developer Edition is a version of Firefox tailored for developers, featuring the latest Firefox features and experimental developer tools. The current Developer Edition includes these updates to the developer tools: Edit stored items in the Storage Inspector.