diff --git a/browser/app/Makefile.in b/browser/app/Makefile.in
index b399291b290..f771036f604 100644
--- a/browser/app/Makefile.in
+++ b/browser/app/Makefile.in
@@ -373,9 +373,6 @@ libs repackage:: $(PROGRAM)
 	rm -f $(DIST)/$(APP_NAME).app/Contents/MacOS/$(PROGRAM) $(DIST)/$(APP_NAME).app/Contents/MacOS/mangle $(DIST)/$(APP_NAME).app/Contents/MacOS/shlibsign
 	rsync -aL $(PROGRAM) $(DIST)/$(APP_NAME).app/Contents/MacOS
 	mkdir -p $(DIST)/$(APP_NAME).app/Contents/Plug-Ins
-# Bug 297227: the next line only exists to repair broken depend builds, it can
-# go away once that bug has been closed for a while.
-	rm -rf $(DIST)/$(APP_NAME).app/Contents/Plug-Ins/PrintPDE.plugin
 	rsync -a --copy-unsafe-links $(DIST)/package/PrintPDE.plugin $(DIST)/$(APP_NAME).app/Contents/Plug-Ins
 	-cp -L $(DIST)/bin/mangle $(DIST)/bin/shlibsign $(DIST)/$(APP_NAME).app/Contents/MacOS
 	cp -RL $(DIST)/branding/firefox.icns $(DIST)/$(APP_NAME).app/Contents/Resources/firefox.icns
diff --git a/embedding/components/printingui/src/mac/printpde/Makefile.in b/embedding/components/printingui/src/mac/printpde/Makefile.in
index 292cfce3e96..0e8ce53c168 100644
--- a/embedding/components/printingui/src/mac/printpde/Makefile.in
+++ b/embedding/components/printingui/src/mac/printpde/Makefile.in
@@ -79,11 +79,6 @@ export::
 endif
 
 libs::
-# Bug 297227: The next line doesn't need to stay around forever, only
-# long enough to clean up existing depend builds from when xcodebuild
-# was being instructed to "install"
-	if test -e build/UninstalledProducts ; then $(MAKE) clean ; rm -rf $(DIST)/package/PrintPDE.plugin ; fi
-
 	$(PBBUILD) $(PROJECT_ARG) -target PrintPDE -buildstyle $(BUILDSTYLE) $(PBBUILD_ARG)
 	mkdir -p $(DIST)/package
 	$(INSTALL) $(XCODE_PRODUCT_DIR)/PrintPDE.plugin $(DIST)/package
diff --git a/mail/app/Makefile.in b/mail/app/Makefile.in
index be1d50c73a4..367506a2d68 100644
--- a/mail/app/Makefile.in
+++ b/mail/app/Makefile.in
@@ -315,9 +315,6 @@ libs:: $(PROGRAM)
 	rm -f $(DIST)/$(APP_NAME).app/Contents/MacOS/$(PROGRAM)
 	rsync -aL $(PROGRAM) $(DIST)/$(APP_NAME).app/Contents/MacOS
 	mkdir -p $(DIST)/$(APP_NAME).app/Contents/Plug-Ins
-# Bug 297227: the next line only exists to repair broken depend builds, it can
-# go away once that bug has been closed for a while.
-	rm -rf $(DIST)/$(APP_NAME).app/Contents/Plug-Ins/PrintPDE.plugin
 	rsync -a --copy-unsafe-links $(DIST)/package/PrintPDE.plugin $(DIST)/$(APP_NAME).app/Contents/Plug-Ins
 	cp -RL $(DIST)/branding/thunderbird.icns $(DIST)/$(APP_NAME).app/Contents/Resources/thunderbird.icns
 	cp -RL $(srcdir)/macbuild/mail-biff-badge.png 	$(DIST)/$(APP_NAME).app/Contents/Resources/mail-biff-badge.png
diff --git a/xpfe/bootstrap/Makefile.in b/xpfe/bootstrap/Makefile.in
index f8f6fe11538..445caa28b06 100644
--- a/xpfe/bootstrap/Makefile.in
+++ b/xpfe/bootstrap/Makefile.in
@@ -486,9 +486,6 @@ libs:: $(PROGRAM)
 	rm -f $(DIST)/$(APP_NAME).app/Contents/MacOS/$(PROGRAM)
 	rsync -aL $(PROGRAM) $(DIST)/$(APP_NAME).app/Contents/MacOS
 	mkdir -p $(DIST)/$(APP_NAME).app/Contents/Plug-Ins
-# Bug 297227: the next line only exists to repair broken depend builds, it can
-# go away once that bug has been closed for a while.
-	rm -rf $(DIST)/$(APP_NAME).app/Contents/Plug-Ins/PrintPDE.plugin
 	rsync -a --copy-unsafe-links $(DIST)/package/PrintPDE.plugin $(DIST)/$(APP_NAME).app/Contents/Plug-Ins
 	cp -RL $(DIST)/package/mozillaSuite.rsrc $(DIST)/$(APP_NAME).app/Contents/Resources/$(PROGRAM).rsrc
 	echo -n APPLMOZZ > $(DIST)/$(APP_NAME).app/Contents/PkgInfo