Firefox 21 nightly adds monochrome-enabled refreshed History window

Months ago, the Mozilla developers announced the upcoming arrival of Australis, a definitely interesting theme that introduces numerous new visual elements to Firefox, such as rounded corners, polished tabs, pleasant-to-eye color tones, etc, an overall good-looking default theme for Firefox.

Weeks ago, the Firefox developers stated that Australis for Linux is to be developed and (partially) landed probably in the first quarter of 2013, yet, with each and each new nightly release, one can easily observe new and new visual additions, bundle of changes transitioning Firefox to a visually refreshed web-browser.

Firefox nightly has already received a dedicated download icon, attached panel that groups and displays both in-progress and completed downloads, process paired with a noticeable animation.

Clicking on the download icon, summons the attached panel, clicking on Show All Downloads, summons the newly refreshed History window.

Hitting the Downloads category, displays the downloads with increased per-downloaded-item space and fancy monochrome icons, latter icons bearing multiple functionalities: clicking on a folder-like monochrome icon, opens its related item in its of-origin folder, clicking on a refresh-like monochrome icon, restarts (if possible) the download process for specific items.