diff --git a/browser/app/module.ver b/browser/app/module.ver
index 3520e8e0ff..fb17732577 100644
--- a/browser/app/module.ver
+++ b/browser/app/module.ver
@@ -1,8 +1,8 @@
 WIN32_MODULE_COMPANYNAME=@MOZ_APP_VENDOR@
-WIN32_MODULE_COPYRIGHT=©Eclipse Community, Basilisk and Mozilla Developers; available under the MPL 2 license.
+WIN32_MODULE_COPYRIGHT=�Dactyloidae Project, Eclipse Community, Basilisk and Mozilla Developers; available under the MPL 2 license.
 WIN32_MODULE_PRODUCTVERSION=@MOZ_APP_WINVERSION@
 WIN32_MODULE_PRODUCTVERSION_STRING=@MOZ_APP_VERSION@
-WIN32_MODULE_TRADEMARKS=The Hydra logo and project names are trademarks of Eclipse Community.
-WIN32_MODULE_DESCRIPTION=@MOZ_APP_DISPLAYNAME@ web browser
+WIN32_MODULE_TRADEMARKS=The Dactyloidae logo and project names are trademarks of Eclipse Community and Dactyloidae Project.
+WIN32_MODULE_DESCRIPTION=@MOZ_APP_DISPLAYNAME@
 WIN32_MODULE_PRODUCTNAME=@MOZ_APP_DISPLAYNAME@
 WIN32_MODULE_NAME=@MOZ_APP_DISPLAYNAME@
diff --git a/media/libcubeb/src/cubeb_wasapi.cpp b/media/libcubeb/src/cubeb_wasapi.cpp
index efb0ed35df..4d99f80834 100644
--- a/media/libcubeb/src/cubeb_wasapi.cpp
+++ b/media/libcubeb/src/cubeb_wasapi.cpp
@@ -938,6 +938,12 @@ BOOL WINAPI revert_mm_thread_characteristics_noop(HANDLE mmcss_handle)
 
 HRESULT register_notification_client(cubeb_stream * stm)
 {
+#if defined(__MINGW32__)
+  // MinGW builds have shown crashes in MMDevApi callback dispatch paths.
+  // Skip notification registration and rely on normal stream operation.
+  (void)stm;
+  return S_OK;
+#else
   HRESULT hr = CoCreateInstance(__uuidof(MMDeviceEnumerator),
                                 NULL, CLSCTX_INPROC_SERVER,
                                 IID_PPV_ARGS(&stm->device_enumerator));
@@ -958,10 +964,15 @@ HRESULT register_notification_client(cubeb_stream * stm)
   }
 
   return hr;
+#endif
 }
 
 HRESULT unregister_notification_client(cubeb_stream * stm)
 {
+#if defined(__MINGW32__)
+  (void)stm;
+  return S_OK;
+#else
   XASSERT(stm);
   HRESULT hr;
 
@@ -981,6 +992,7 @@ HRESULT unregister_notification_client(cubeb_stream * stm)
   SafeRelease(stm->device_enumerator);
 
   return S_OK;
+#endif
 }
 
 HRESULT get_endpoint(IMMDevice ** device, LPCWSTR devid)
diff --git a/media/libcubeb/src/moz.build b/media/libcubeb/src/moz.build
index b4515a3a9a..374a6df593 100644
--- a/media/libcubeb/src/moz.build
+++ b/media/libcubeb/src/moz.build
@@ -67,7 +67,7 @@ if CONFIG['OS_TARGET'] == 'WINNT':
         'cubeb_winmm.c',
     ]
     DEFINES['USE_WINMM'] = True
-    if CONFIG['MOZ_SAMPLE_TYPE_FLOAT32']:
+    if CONFIG['MOZ_SAMPLE_TYPE_FLOAT32'] and not CONFIG['GNU_CC']:
         DEFINES['USE_WASAPI'] = True
         SOURCES += [
             'cubeb_wasapi.cpp',
diff --git a/mozglue/misc/StackWalk.cpp b/mozglue/misc/StackWalk.cpp
index 141e2eb41b..ab29ba25a9 100644
--- a/mozglue/misc/StackWalk.cpp
+++ b/mozglue/misc/StackWalk.cpp
@@ -851,7 +851,12 @@ MozDescribeCodeAddress(void* aPC, MozCodeAddressDetails* aDetails)
   pSymbol->MaxNameLen = MAX_SYM_NAME;
 
   DWORD64 displacement;
+#ifdef __MINGW32__
+  // SymFromAddr is not available in MinGW dbghelp.dll
+  ok = FALSE;
+#else
   ok = SymFromAddr(myProcess, addr, &displacement, pSymbol);
+#endif
 
   if (ok) {
     strncpy(aDetails->function, pSymbol->Name,
diff --git a/security/nss/lib/util/quickder.c b/security/nss/lib/util/quickder.c
index 70ae42b270..974daaf391 100644
--- a/security/nss/lib/util/quickder.c
+++ b/security/nss/lib/util/quickder.c
@@ -8,7 +8,14 @@
 
 #include "secerr.h"
 #include "secasn1.h" /* for SEC_ASN1GetSubtemplate */
-#include "secitem.h"
+
+#if defined(_WIN32) && !defined(_WIN64)
+static __inline void* Win2000_EncodePointer(void* p) { return p; }
+static __inline void* Win2000_DecodePointer(void* p) { return p; }
+
+#define EncodePointer(p) Win2000_EncodePointer(p)
+#define DecodePointer(p) Win2000_DecodePointer(p)
+#endif
 
 /*
  * simple definite-length ASN.1 decoder