diff --git a/media/libcubeb/disable-assert.patch b/media/libcubeb/disable-assert.patch
new file mode 100644
index 000000000000..6fae3a76633b
--- /dev/null
+++ b/media/libcubeb/disable-assert.patch
@@ -0,0 +1,23 @@
+diff --git a/media/libcubeb/src/cubeb_resampler.cpp b/media/libcubeb/src/cubeb_resampler.cpp
+--- a/media/libcubeb/src/cubeb_resampler.cpp
++++ b/media/libcubeb/src/cubeb_resampler.cpp
+@@ -50,18 +50,17 @@ passthrough_resampler<T>::passthrough_re
+ 
+ template<typename T>
+ long passthrough_resampler<T>::fill(void * input_buffer, long * input_frames_count,
+                                     void * output_buffer, long output_frames)
+ {
+   if (input_buffer) {
+     assert(input_frames_count);
+   }
+-  assert((input_buffer && output_buffer &&
+-         *input_frames_count + static_cast<int>(samples_to_frames(internal_input_buffer.length())) >= output_frames) ||
++  assert((input_buffer && output_buffer) ||
+          (output_buffer && !input_buffer && (!input_frames_count || *input_frames_count == 0)) ||
+          (input_buffer && !output_buffer && output_frames == 0));
+ 
+   if (input_buffer) {
+     if (!output_buffer) {
+       output_frames = *input_frames_count;
+     }
+     internal_input_buffer.push(static_cast<T*>(input_buffer),
diff --git a/media/libcubeb/src/cubeb_resampler.cpp b/media/libcubeb/src/cubeb_resampler.cpp
index f4ea8a9f5f0c..01075a86dd1b 100644
--- a/media/libcubeb/src/cubeb_resampler.cpp
+++ b/media/libcubeb/src/cubeb_resampler.cpp
@@ -55,8 +55,7 @@ long passthrough_resampler<T>::fill(void * input_buffer, long * input_frames_cou
   if (input_buffer) {
     assert(input_frames_count);
   }
-  assert((input_buffer && output_buffer &&
-         *input_frames_count + static_cast<int>(samples_to_frames(internal_input_buffer.length())) >= output_frames) ||
+  assert((input_buffer && output_buffer) ||
          (output_buffer && !input_buffer && (!input_frames_count || *input_frames_count == 0)) ||
          (input_buffer && !output_buffer && output_frames == 0));
 
diff --git a/media/libcubeb/update.sh b/media/libcubeb/update.sh
index 791cadae117d..0f348ddecdfc 100755
--- a/media/libcubeb/update.sh
+++ b/media/libcubeb/update.sh
@@ -69,3 +69,6 @@ fi
 
 echo "Applying a patch on top of $rev"
 patch -p3 < temp-patch-debug-drift.patch
+
+echo "Applying a patch on top of $rev"
+patch -p3 < disable-assert.patch