diff --git a/browser/sessionstore/.gitignore b/browser/sessionstore/.gitignore
new file mode 100644
index 00000000..3e245c10
--- /dev/null
+++ b/browser/sessionstore/.gitignore
@@ -0,0 +1,4 @@
+nsISessionStore.h
+nsISessionStore.xpt
+stamp-nsISessionStore.h
+stamp-nsISessionStore.xpt