diff --git a/src/userChrome/urlbar.css b/src/userChrome/urlbar.css
index 4ad5cf7..2f94380 100644
--- a/src/userChrome/urlbar.css
+++ b/src/userChrome/urlbar.css
@@ -4,6 +4,7 @@
 /* Reduce minimum window width */
 #urlbar-container {
     min-width: 150px !important;
+    flex-shrink: 1 !important;
 }
 
 @media (max-width: 700px) {