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Firefox gives you the choice whether or not to allow DRM code to be installed on your browser.

{for not fx37}{warning}This article applies to a newer version of Firefox.{/warning}{/for} Digital Rights Management (DRM) is used by online video and audio services to restrict users from using content in ways that the service does not explicitly permit. While some DRM-controlled content can be viewed using Microsoft Silverlight and Adobe Flash plugins, many services are moving towards HTML5 videos and audio requiring a different DRM mechanism. The desktop version of Firefox now gives you the option to integrate this code using a DRM plug-in from Adobe. This plugin implements a system called Adobe Primetime (previously available via Flash) and allows Firefox to play DRM-controlled video and audio online. Firefox protects users by ''sandboxing'' or restricting the plugin by asking the operating system to limit what the DRM plug-in can do on your computer. Firefox downloads and enables the Adobe Primetime DRM plugin by default to give users a smooth experience on sites that require DRM. If you prefer not to run any closed-source code on Firefox, you can easily disable the plugin and opt out of future updates by following the steps below: =Disable the Adobe Primetime plugin= Disabling Adobe Primetime from the plugins page prevent it from running on your computer, but it will still update when a new version is available. # Click on the menu button [[Image: new fx menu]] and choose {menu Add-ons}. # Click on {menu Plugins} on the left side of the Add-ons Manager page. # Select {menu Never Activate} on the menu next to ''Adobe Primetime DRM''. {note}This affects only controlled HTML5 videos. You will still be able to view DRM-controlled videos that require Silverlight or Flash (which includes its own version of Primetime) plugins if you've enabled them.{/note} =Opt out of the Adobe Primetime DRM download completely= You also have choice of opting out of the current Adobe Primetime download as well as any future Primetime updates. To opt out of all Primetime updates, follow these steps: # Click on the menu button [[Image: new fx menu]]. # Click [[Template:optionsorpreferences]]. # Remove the check mark next to ''Play DRM''. {note}You will not be able to play DRM-controlled HTML5 video or audio, but this does not affect content that requires other plugins like Silverlight.{/note} =Supported Platforms= Currently, Adobe Primetime is only available for Microsoft Windows Vista and above in 32 bit versions. 64 bit Windows operating systems, Mac OSX, and Linux are currently not available. Users on unsupported platforms may still follow the instructions above to opt out of Adobe Primetime completely.