An anonymous reader writes: Mozilla today launched Firefox 43 for Windows, Mac, Linux, and Android. Notable additions to the browser include a 64-bit version for Windows (finally!), a new strict blocklist for the browser's tracking protection feature, and tab audio indicators on Android. "There is, however, a bit of a caveat. Firefox 64-bit for Windows has limited support for plugins. Certain sites that require plugins and work in Firefox 32-bit might not work in this 64-bit version. But Mozilla doesn’t see this as a big problem, and says it is by design. After all, the company plans to drop support for NPAPI plugins in Firefox by the end of the year (though it will keep Flash around). Mozilla has just over two weeks to deliver on that promise." Here are the changelogs: desktop and Android.