diff -up firefox-54.0/media/libyuv/libyuv/tools_libyuv/autoroller/unittests/testdata/DEPS.chromium.old firefox-54.0/media/libyuv/libyuv/tools_libyuv/autoroller/unittests/testdata/DEPS.chromium
diff -up firefox-54.0/media/mtransport/third_party/nICEr/nicer.gyp.old firefox-54.0/media/mtransport/third_party/nICEr/nicer.gyp
--- firefox-54.0/media/mtransport/third_party/nICEr/nicer.gyp.old	2017-06-08 14:59:08.786996664 +0200
+++ firefox-54.0/media/mtransport/third_party/nICEr/nicer.gyp	2017-06-08 14:59:22.642946570 +0200
@@ -211,7 +211,6 @@
                     '-Wno-parentheses',
                     '-Wno-strict-prototypes',
                     '-Wmissing-prototypes',
-                    '-Wno-format',
                  ],
                  'defines' : [
                      'LINUX',
diff -up firefox-54.0/media/mtransport/third_party/nrappkit/nrappkit.gyp.build firefox-54.0/media/mtransport/third_party/nrappkit/nrappkit.gyp
--- firefox-54.0/media/mtransport/third_party/nrappkit/nrappkit.gyp.build	2017-06-08 15:08:03.627063097 +0200
+++ firefox-54.0/media/mtransport/third_party/nrappkit/nrappkit.gyp	2017-06-08 15:08:15.657019606 +0200
@@ -206,7 +206,6 @@
                      '-Wno-parentheses',
                      '-Wno-strict-prototypes',
                      '-Wmissing-prototypes',
-                     '-Wno-format',
                  ],
                  'defines' : [
                      'LINUX',