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DRM EME Primetime

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

{for not fx38}{warning}This article applies to a newer version of Firefox.{/warning}{/for} Digital Rights Management (DRM) is technology that enables online video and audio services to enforce that the content they provide is used in accordance with their requirements. This technology may restrict some of the things you can do in the browser. While some DRM-controlled content can be viewed using the Microsoft Silverlight and Adobe Flash plugins, many services are moving towards HTML5 video that requires a different DRM mechanism called a Content Decryption Module (CDM). Beginning in version 38, Firefox on Windows supports HTML5 playback of DRM-controlled video and audio through the Adobe Primetime CDM. This CDM implements a DRM system called Adobe Primetime, which was previously available via the Adobe Flash plugin. Beginning in version 47, Firefox desktop also supports the Google Widevine CDM. {for win}Firefox downloads and enables the Google Widevine and Adobe Primetime CDMs by default to give users a smooth experience on sites that require DRM.{/for}{for mac}Firefox downloads and enables the Google Widevine CDM by default to give users a smooth experience on sites that require DRM.{/for}{for linux}Firefox downloads and enables the Google Widevine CDM on demand, with user permission, to give users a smooth experience on sites that require DRM.{/for} The CDM runs in a separate container called a sandbox and you will be notified when a CDM is in use. You can also disable a CDM and opt out of future updates by following the steps below. Once you disable a CDM, however, sites using this type of DRM may not operate properly. Some sites may use DRM that is not supported by the {for linux,mac}Google Widevine CDM{/for}{for win}Google Widevine and Adobe Primetime CDMs{/for}. Support for viewing this content may require a third-party NPAPI plugin, such as Microsoft Silverlight. __TOC__ =Disable the Google Widevine CDM without uninstalling= Disabling Google Widevine from the Add-ons Manager prevents it from running on your computer and prevents future updates from downloading. To disable this CDM plugin: # [[T:Open Add-ons|type=Plugins]] # Select {menu Never Activate} on the menu next to ''Widevine Content Decryption Module provided by Google Inc.'' You may encounter sites where content playback is not possible without Google Widevine enabled. You may always turn Google Widevine on again by selecting {menu Always Activate} on the menu next to ''Widevine Content Decryption Module provided by Google Inc.'' {for win} =Disable the Adobe Primetime CDM without uninstalling= Disabling Adobe Primetime from the Add-ons Manager prevents it from running on your computer and prevents future updates from downloading. To disable this CDM plugin: # [[T:Open Add-ons|type=Plugins]] # Select {menu Never Activate} on the menu next to ''Primetime Content Decryption Module provided by Adobe Systems, Incorporated''. You may encounter sites where content playback is not possible without Adobe Primetime enabled. You may always turn Adobe Primetime on again by selecting {menu Always Activate} on the menu next to ''Primetime Content Decryption Module provided by Adobe Systems, Incorporated''. {/for} =Opt out of CDM playback, uninstall CDMs and stop all CDM downloads= You have the choice to globally opt out of HTML5 DRM playback. Once you opt out, Firefox will delete any downloaded CDMs from your hard drive, cease all future CDM downloads and disable DRM playback. This affects only DRM-controlled HTML5 audio and video. To opt out of HTML5 DRM playback completely, follow these steps: # [[T:optionspreferences]] # Click the ''Content'' panel. # Remove the check mark next to ''Play DRM content''. {note}You will still be able to view DRM-controlled videos that require Silverlight or Flash plugins if you've enabled them. The ''Play DRM content'' setting only controls HTML5 DRM playback, not plugins.{/note} You may encounter sites where content playback is not possible without DRM enabled. You may always turn DRM playback on again by opening the {for win}Options{/for}{for mac,linux}Preferences{/for} > Content panel and putting a check mark next to ''Play DRM content''. After checking the checkbox, HTML5 DRM playback will be re-enabled and the Google and Adobe CDMs will download automatically. =Supported platforms= ==Google Widevine== *Windows Vista and higher *Mac OS X 10.9 and higher *x86 and x64 Linux ==Adobe Primetime== *Windows Vista and higher Similar opt-out capabilities will be offered on all new platforms where Firefox supports DRM.