If that's not good enough, there's a menu option in Firefox that lets you opt out of DRM altogether, after which you can delete the Primetime CDM (or any future CDMs from other vendors) from your hard drive. You can disable the Adobe Primetime CDM so it never activates. If you don't want your browser tainted by DRM at all, you still have options.

The CDM will issue an alert when it's on a site that uses DRM-wrapped content, so people who don't want to use it will have the option of bowing out. (Maybe that's why it took a year to get it integrated.) Mozilla says that because Adobe's CDM is proprietary 'black box' software, it has made certain to wrap it in a sandbox within Firefox so that its code can't interfere with the rest of the browser. Thayer said various companies, including Netflix, are already evaluating Adobe's tech to see if it meets their requirements.

The first firm to leap at the chance to shovel its DRM into Firefox was Adobe, whose Primetime Content Delivery Module for decoding encrypted content shipped with Firefox 38 on Tuesday. 'We don't believe DRM is a desirable market solution, but it's currently the only way to watch a sought-after segment of content,' Mozilla senior veep of legal affairs Danielle Dixon-Thayer said in a blog post. Nonetheless, Mozilla promoted Firefox 38 to the Release channel on Tuesday, complete with EME enabled – although it said it's still doing so reluctantly. 'Nearly everyone who implements DRM says they are forced to do it' the FSF said at the time, 'and this lack of accountability is how the practice sustains itself.'

The nonprofit grudgingly agreed to add EME support to Firefox last year, despite the vocal objections of both Mozilla's then-CTO Brendan Eich and the Free Software Foundation.

Pale moon browser eme drm sandbox