--- a/toolkit/moz.configure
+++ b/toolkit/moz.configure
@@ -415,17 +415,17 @@ add_old_configure_assignment('MOZ_FMP4',
 # Widevine is enabled by default in desktop browser builds.
 @depends(build_project, '--help')
 def eme_default(build_project, help):
     if build_project == 'browser':
         return 'widevine'
 
 option('--enable-eme',
        nargs='*',
-       choices=('adobe','widevine',),
+       choices=('widevine',),
        default=eme_default,
        help='Enable support for Encrypted Media Extensions')
 
 @depends('--enable-eme', target)
 def enable_eme(value, target):
     # Widevine EME by default enabled on desktop Windows, MacOS and Linux,
     # x86 and x64 builds.
     if (target.kernel in ('Darwin', 'WINNT', 'Linux') and