diff --git a/.eslintignore b/.eslintignore
index 4b11fc16b1..f863d8f44a 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -3,6 +3,7 @@ node_modules
 flow-typed
 shells/browser/chrome/build
 shells/browser/firefox/build
+shells/browser/shared/build
 shells/dev/build
 vendor
 
diff --git a/.gitignore b/.gitignore
index d88ef334a0..85e420fd9f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
-/shells/chrome.crx
-/shells/chrome.pem
-/shells/firefox/*.xpi
+/shells/browser/chrome/*.crx
+/shells/browser/chrome/*.pem
+/shells/browser/firefox/*.xpi
+/shells/browser/firefox/*.pem
+/shells/browser/shared/build
 build
 node_modules
 npm-debug.log