diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
index f204a56d27276..020d4d01d430d 100644
--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -791,28 +791,6 @@ mozavcodec
 DLL_SUFFIX
 #
 endif
-#
-ifdef
-XP_WIN
-#
-ifdef
-_AMD64_
-BINPATH
-/
-DLL_PREFIX
-qipcap64
-DLL_SUFFIX
-#
-else
-BINPATH
-/
-DLL_PREFIX
-qipcap
-DLL_SUFFIX
-#
-endif
-#
-endif
 ;
 [
 Components
diff --git a/toolkit/library/dummydll/dummydll.cpp b/toolkit/library/dummydll/dummydll.cpp
deleted file mode 100644
index 78f12e2e742cd..0000000000000
--- a/toolkit/library/dummydll/dummydll.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-#
-include
-<
-windows
-.
-h
->
-BOOL
-WINAPI
-DllMain
-(
-HANDLE
-hModule
-DWORD
-dwReason
-LPVOID
-lpvReserved
-)
-{
-if
-(
-dwReason
-=
-=
-DLL_PROCESS_ATTACH
-)
-{
-:
-:
-DisableThreadLibraryCalls
-(
-(
-HMODULE
-)
-hModule
-)
-;
-}
-return
-TRUE
-;
-}
diff --git a/toolkit/library/dummydll/moz.build b/toolkit/library/dummydll/moz.build
deleted file mode 100644
index 55e0b2766084f..0000000000000
--- a/toolkit/library/dummydll/moz.build
+++ /dev/null
@@ -1,43 +0,0 @@
-SOURCES
-+
-=
-[
-"
-dummydll
-.
-cpp
-"
-]
-if
-CONFIG
-[
-"
-CPU_ARCH
-"
-]
-=
-=
-"
-x86_64
-"
-:
-GeckoSharedLibrary
-(
-"
-qipcap64
-"
-)
-else
-:
-GeckoSharedLibrary
-(
-"
-qipcap
-"
-)
-NoVisibilityFlags
-(
-)
-NO_PGO
-=
-True
diff --git a/toolkit/library/moz.build b/toolkit/library/moz.build
index bc00be6ca2666..dd95a7ee55b96 100644
--- a/toolkit/library/moz.build
+++ b/toolkit/library/moz.build
@@ -766,27 +766,6 @@ build
 gtest
 "
 ]
-if
-CONFIG
-[
-"
-OS_ARCH
-"
-]
-=
-=
-"
-WINNT
-"
-:
-DIRS
-+
-=
-[
-"
-dummydll
-"
-]
 USE_LIBS
 +
 =