diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index bb1ad93..2e18b09 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -3271,6 +3271,11 @@
   html|input {
     border-radius: 0 !important;
   }
+
+  #urlbar-background,
+  #searchbar {
+    --toolbarbutton-border-radius: 0;
+  }
 }
 @supports -moz-bool-pref("userChrome.rounding.square_checklabel") {
   .checkbox-check,
diff --git a/src/rounding/_square.scss b/src/rounding/_square.scss
index 35355c6..fa92deb 100644
--- a/src/rounding/_square.scss
+++ b/src/rounding/_square.scss
@@ -56,6 +56,11 @@
   html|input {
     border-radius: 0 !important;
   }
+
+  #urlbar-background,
+  #searchbar {
+    --toolbarbutton-border-radius: 0;
+  }
 }
 
 @include Option("userChrome.rounding.square_checklabel") {