diff --git a/locales/en-US/editor.properties b/locales/en-US/editor.properties
index 4403c719c..6a586caf2 100644
--- a/locales/en-US/editor.properties
+++ b/locales/en-US/editor.properties
@@ -208,6 +208,15 @@ PDF_FILE_TITLE=PDF File
 ################
 ## EXTENSIONS ##
 ################
+# extensions/default/InlineBorderRadiusEditor
+
+# "Individual Corners" is an option that can be selected for border-radius in case when users want to change border-radius value for just one specific corner.
+INDIVIDUAL_CORNERS=Individual Corners
+# "All Corners" is an option that can be selected for border-radius in case when users want to change border-radius value for all four corners at once
+ALL_CORNERS=All Corners
+PIXEL_UNIT=pixels
+PERCENTAGE_UNIT=percentage
+EM_UNIT=em font unit
 
 # extensions/default/InlineColorEditor