--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -652,16 +652,17 @@
 ; All the pref files must be part of base to prevent migration bugs
 @RESPATH@/browser/@PREF_DIR@/firefox.js
 @RESPATH@/browser/@PREF_DIR@/firefox-branding.js
 @RESPATH@/greprefs.js
 @RESPATH@/defaults/autoconfig/prefcalls.js
 @RESPATH@/browser/defaults/permissions
 @RESPATH@/browser/defaults/blocklists
 @RESPATH@/browser/defaults/pinning
+@RESPATH@/browser/defaults/fingerprinting-defenses
 
 ; Warning: changing the path to channel-prefs.js can cause bugs (Bug 756325)
 ; Technically this is an app pref file, but we are keeping it in the original
 ; gre location for now.
 @RESPATH@/defaults/pref/channel-prefs.js
 
 ; Remote control protocol prefs
 ; defined in ../../testing/marionette/prefs/marionette.js

new file mode 100644
--- /dev/null
+++ b/toolkit/components/resistfingerprinting/fonts.json
@@ -0,0 +1,1 @@
+{"data":[]}

--- a/toolkit/components/resistfingerprinting/moz.build
+++ b/toolkit/components/resistfingerprinting/moz.build
@@ -5,11 +5,16 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 UNIFIED_SOURCES += [
     'nsRFPService.cpp',
 ]
 
 FINAL_LIBRARY = 'xul'
 
+FINAL_TARGET_FILES.defaults['fingerprinting-defenses'] += ['fonts.json']
+
+if CONFIG['MOZ_BUILD_APP'] == 'browser':
+    DIST_SUBDIR = 'browser'
+
 EXPORTS += [
     'nsRFPService.h',
 ]