diff --git a/build/extlib/.gitignore b/build/extlib/.gitignore
index 000465f58d..eb9d74cd12 100644
--- a/build/extlib/.gitignore
+++ b/build/extlib/.gitignore
@@ -28,3 +28,7 @@ NoAnalytics/
 TintAddon/
 NumberPicker/
 Slider/
+BillingLibrary/
+ComicViewer/
+FilePicker/
+aFileChooser/