diff --git a/extensions/firefox/.gitignore b/extensions/firefox/.gitignore
index 3eb92306..08a23850 100644
--- a/extensions/firefox/.gitignore
+++ b/extensions/firefox/.gitignore
@@ -1 +1,2 @@
 content/
+metadata.inc
diff --git a/web/.gitignore b/web/.gitignore
index 2c0f5df7..588e0e72 100644
--- a/web/.gitignore
+++ b/web/.gitignore
@@ -1 +1,2 @@
 viewer-production.html
+locale.properties