--- a/browser/themes/linux/devtools/widgets.css
+++ b/browser/themes/linux/devtools/widgets.css
@@ -97,16 +97,17 @@
   transform: scaleX(-1);
 }
 
 .breadcrumbs-widget-item {
   background-color: transparent;
   -moz-appearance: none;
   overflow: hidden;
   min-width: 85px;
+  max-width: 250px;
   min-height: 25px;
   border-style: solid;
   border-width: 1px 13px 2px 13px;
   margin: 0 -11px 0 0;
   padding: 0 9px;
   outline: none;
   color: hsl(210,30%,85%);
 }

--- a/browser/themes/osx/devtools/widgets.css
+++ b/browser/themes/osx/devtools/widgets.css
@@ -97,16 +97,17 @@
   transform: scaleX(-1);
 }
 
 .breadcrumbs-widget-item {
   background-color: transparent;
   -moz-appearance: none;
   overflow: hidden;
   min-width: 85px;
+  max-width: 250px;
   min-height: 25px;
   border-style: solid;
   border-width: 1px 13px 2px 13px;
   margin: 0 -11px 0 0;
   padding: 0 9px;
   outline: none;
   color: hsl(210,30%,85%);
 }

--- a/browser/themes/windows/devtools/widgets.css
+++ b/browser/themes/windows/devtools/widgets.css
@@ -97,16 +97,17 @@
   transform: scaleX(-1);
 }
 
 .breadcrumbs-widget-item {
   background-color: transparent;
   -moz-appearance: none;
   overflow: hidden;
   min-width: 85px;
+  max-width: 250px;
   min-height: 25px;
   border-style: solid;
   border-width: 2px 13px;
   margin: 0 -11px 0 0;
   padding: 0 9px;
   outline: none;
   color: hsl(210,30%,85%);
 }