diff --git a/ui/components/ui/tabs/index.scss b/ui/components/ui/tabs/index.scss
index ea22a7d52..4be72a141 100644
--- a/ui/components/ui/tabs/index.scss
+++ b/ui/components/ui/tabs/index.scss
@@ -1,6 +1,7 @@
 @import 'tab/index';
 
 .tabs {
+  flex-grow: 1;
   // Just for Firefox — https://github.com/MetaMask/metamask-extension/issues/8700
   -moz-transform: translateZ(0);