diff -up firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft.cc.debuginfo-fix firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft.cc
--- firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft.cc.debuginfo-fix	2021-09-01 11:11:46.738285751 +0200
+++ firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft.cc	2021-09-01 11:11:56.127319530 +0200
@@ -21,7 +21,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "modules/audio_processing//utility/ooura_fft.h"
+#include "modules/audio_processing/utility/ooura_fft.h"
 
 #include <math.h>
 
diff -up firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft_sse2.cc.debuginfo-fix firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft_sse2.cc
--- firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft_sse2.cc.debuginfo-fix	2021-09-01 11:12:26.513428847 +0200
+++ firefox-91.0.1/third_party/libwebrtc/webrtc/modules/audio_processing/utility/ooura_fft_sse2.cc	2021-09-01 11:12:32.117449009 +0200
@@ -8,7 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "modules/audio_processing//utility/ooura_fft.h"
+#include "modules/audio_processing/utility/ooura_fft.h"
 
 #include <emmintrin.h>