diff --git a/media/highway/moz.build b/media/highway/moz.build
index f7ef48ba28..da8876c5b7 100644
--- a/media/highway/moz.build
+++ b/media/highway/moz.build
@@ -30,6 +30,7 @@ EXPORTS.hwy += [
 EXPORTS.hwy.ops += [
     "/media/highway/src/hwy/ops/arm_neon-inl.h",
     "/media/highway/src/hwy/ops/arm_sve-inl.h",
+    "/media/highway/src/hwy/ops/emu128-inl.h",
     "/media/highway/src/hwy/ops/generic_ops-inl.h",
     "/media/highway/src/hwy/ops/rvv-inl.h",
     "/media/highway/src/hwy/ops/scalar-inl.h",
@@ -42,3 +43,6 @@ EXPORTS.hwy.ops += [
 ]
 
 FINAL_LIBRARY = "gkmedias"
+
+# We allow warnings for third-party code that can be updated from upstream.
+ALLOW_COMPILER_WARNINGS = True
diff --git a/media/libjxl/moz.build b/media/libjxl/moz.build
index 09dea2583e..d3e8c4a988 100644
--- a/media/libjxl/moz.build
+++ b/media/libjxl/moz.build
@@ -131,6 +131,9 @@ EXPORTS.jxl += [
 
 FINAL_LIBRARY = "gkmedias"
 
+# We allow warnings for third-party code that can be updated from upstream.
+ALLOW_COMPILER_WARNINGS = True
+
 # Clang 5.0 has a compiler bug that prevents build in c++17
 # See https://gitlab.com/wg1/jpeg-xl/-/issues/227
 # This should be okay since we are using the C API.