diff --git a/.gitignore b/.gitignore
index ed865bf..868c8aa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,5 @@ modules/MathJax/unpacked/jax/output/SVG/fonts/Gyre-Termes
 modules/MathJax/unpacked/jax/output/SVG/fonts/Latin-Modern
 modules/MathJax/unpacked/jax/output/SVG/fonts/Neo-Euler
 modules/MathJax/unpacked/jax/output/SVG/fonts/STIX-Web
+tests/browser/.bundle
+tests/browser/.gem