 config/baseconfig.mk                  | 2 +-
 toolkit/mozapps/installer/packager.mk | 4 ++--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git c/config/baseconfig.mk i/config/baseconfig.mk
index 3ef3af95d611..81530dface0a 100644
--- c/config/baseconfig.mk
+++ i/config/baseconfig.mk
@@ -2,7 +2,7 @@
 # directly in python/mozbuild/mozbuild/base.py for gmake validation.
 # We thus use INCLUDED_AUTOCONF_MK to enable/disable some parts depending
 # whether a normal build is happening or whether the check is running.
-installdir = $(libdir)/$(MOZ_APP_NAME)
+installdir = $(libdir)/$(MOZ_APP_NAME)-beta
 ifeq (.,$(DEPTH))
 DIST = dist
 else
diff --git c/toolkit/mozapps/installer/packager.mk i/toolkit/mozapps/installer/packager.mk
index 64f902a26942..d3313dacbcb7 100644
--- c/toolkit/mozapps/installer/packager.mk
+++ i/toolkit/mozapps/installer/packager.mk
@@ -138,8 +138,8 @@ endif
 	(cd $(DIST)/$(MOZ_PKG_DIR) && $(TAR) --exclude=precomplete $(TAR_CREATE_FLAGS) - .) | \
 	  (cd $(DESTDIR)$(installdir) && tar -xf -)
 	$(NSINSTALL) -D $(DESTDIR)$(bindir)
-	$(RM) -f $(DESTDIR)$(bindir)/$(MOZ_APP_NAME)
-	ln -s $(installdir)/$(MOZ_APP_NAME) $(DESTDIR)$(bindir)
+	$(RM) -f $(DESTDIR)$(bindir)/$(MOZ_APP_NAME)-beta
+	ln -s $(installdir)/$(MOZ_APP_NAME) $(DESTDIR)$(bindir)/$(MOZ_APP_NAME)-beta
 
 upload:
 	$(PYTHON) -u $(MOZILLA_DIR)/build/upload.py --base-path $(DIST) $(UPLOAD_FILES)
