Don’t get me wrong, Firefox is still my favourite browser, the only one I use regularly, but it is brilliant news that Zotero will (thanks to a new project Zotero Everywhere) become available for the other major browsers, and as a standalone app. This is a significant step, and makes a flexible, simple yet powerful, free bibliography manager even more free :)
Zotero already works on PC, Linux and Mac. It already cooperates with Open Office and MS Word, and I believe in Linux (at least) with a LaTex front end. Now it is becoming even more platform agnostic. Great news!