diff --git a/dom/media/MediaPrefs.h b/dom/media/MediaPrefs.h
index c67a899896..1f2825fd21 100644
--- a/dom/media/MediaPrefs.h
+++ b/dom/media/MediaPrefs.h
@@ -117,6 +117,9 @@ private:
 #ifdef MOZ_FFVPX
   DECL_MEDIA_PREF("media.ffvpx.enabled",                      PDMFFVPXEnabled, bool, true);
 #endif
+#if defined(MOZ_FFVPX) || defined(MOZ_FFMPEG)
+  DECL_MEDIA_PREF("media.ffmpeg.skip_loop_filter",            FFmpegSkipLoopFilter, bool, false);
+#endif
 #ifdef MOZ_AV1
   DECL_MEDIA_PREF("media.av1.enabled",                        AV1Enabled, bool, false);
 #endif
diff --git a/dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp b/dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp
index f3101e44ce..d9ab6fd5d1 100644
--- a/dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp
+++ b/dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp
@@ -15,6 +15,7 @@
 
 #include "FFmpegVideoDecoder.h"
 #include "FFmpegLog.h"
+#include "MediaPrefs.h"
 #include "mozilla/PodOperations.h"
 
 #include "libavutil/pixfmt.h"
@@ -152,6 +153,12 @@ FFmpegVideoDecoder<LIBAV_VER>::InitCodecContext()
     mCodecContext->thread_type = FF_THREAD_SLICE | FF_THREAD_FRAME;
   }
 
+  if(MediaPrefs::FFmpegSkipLoopFilter()) {
+    // Enable skipping loop filter and allow non spec compliant speedup tricks.
+    mCodecContext->flags2 |= 1; //AV_CODEC_FLAG2_FAST - could not inline for unknown reason ^-^'
+    mCodecContext->skip_loop_filter = AVDISCARD_ALL;
+  }
+
   // FFmpeg will call back to this to negotiate a video pixel format.
   mCodecContext->get_format = ChoosePixelFormat;