--- a/browser/locales/en-US/chrome/browser/customizableui/customizableWidgets.properties
+++ b/browser/locales/en-US/chrome/browser/customizableui/customizableWidgets.properties
@@ -103,8 +103,13 @@ loop-call-button2.tooltiptext = Start a 
 social-share-button.label = Share This Page
 social-share-button.tooltiptext = Share This Page
 
 panic-button.label = Forget
 panic-button.tooltiptext = Forget about some browsing history
 
 web-apps-button.label = Apps
 web-apps-button.tooltiptext = Discover Apps
+
+# LOCALIZATION NOTE(devtools-webide-button.label, devtools-webide-button.tooltiptext):
+# widget is only visible after WebIDE has been started once (Tools > Web Developers > WebIDE)
+devtools-webide-button.label = WebIDE
+devtools-webide-button.tooltiptext = Open WebIDE