diff --git a/mail/components/addrbook/content/addressbook.js b/mail/components/addrbook/content/addressbook.js
index ab032e3996..fbf4ebce37 100644
--- a/mail/components/addrbook/content/addressbook.js
+++ b/mail/components/addrbook/content/addressbook.js
@@ -493,8 +493,8 @@ function SetStatusText(total)
         statusText = gAddressBookBundle.getString("noMatchFound");
       } else {
         statusText = PluralForm
-          .get(total, gAddressBookBundle.getString("matchesFoundCount"))
-          .replace("%S", total);
+          .get(total, gAddressBookBundle.getString("matchesFound"))
+          .replace("#1", total);
       }
     }
     else
diff --git a/mail/locales/en-US/chrome/messenger/addressbook/addressBook.properties b/mail/locales/en-US/chrome/messenger/addressbook/addressBook.properties
index b5558bbfff..5a54e59353 100644
--- a/mail/locales/en-US/chrome/messenger/addressbook/addressBook.properties
+++ b/mail/locales/en-US/chrome/messenger/addressbook/addressBook.properties
@@ -110,9 +110,11 @@ ldap_2.servers.osx.description=Mac OS X Address Book
 ## %1$S is address book name, %2$S is contact count
 totalContactStatus=Total contacts in %1$S: %2$S
 noMatchFound=No matches found
-# LOCALIZATION NOTE (matchesFoundCount): Semi-colon list of plural forms
-# $S is the number of matches found
-matchesFoundCount=%S match found;%S matches found
+## LOCALIZATION NOTE (matchesFound):
+## Semicolon-separated list of singular and plural forms.
+## See: https://developer.mozilla.org/docs/Mozilla/Localization/Localization_and_Plurals
+## #1 is the number of matching contacts found
+matchesFound=#1 match found;#1 matches found
 
 ## LOCALIZATION NOTE (contactsCopied): Semi-colon list of plural forms
 ## %1$S is the number of contacts that were copied. This should be used multiple
diff --git a/suite/locales/en-US/chrome/mailnews/addressbook/addressBook.properties b/suite/locales/en-US/chrome/mailnews/addressbook/addressBook.properties
index 6f9cdba734..fe81a6a4ae 100644
--- a/suite/locales/en-US/chrome/mailnews/addressbook/addressBook.properties
+++ b/suite/locales/en-US/chrome/mailnews/addressbook/addressBook.properties
@@ -103,9 +103,11 @@ ldap_2.servers.osx.description=Mac OS X Address Book
 ## %1$S is address book name, %2$S is card count
 totalContactStatus=Total contacts in %1$S: %2$S
 noMatchFound=No matches found
-# LOCALIZATION NOTE (matchesFoundCount): Semi-colon list of plural forms
-# $S is the number of matches found
-matchesFoundCount=%S match found;%S matches found
+## LOCALIZATION NOTE (matchesFound):
+## Semicolon-separated list of singular and plural forms.
+## See: https://developer.mozilla.org/docs/Mozilla/Localization/Localization_and_Plurals
+## #1 is the number of matching contacts found
+matchesFound=#1 match found;#1 matches found
 
 ## LOCALIZATION NOTE (contactsCopied): Semi-colon list of plural forms
 ## %1$S is the number of contacts that were copied. This should be used multiple
diff --git a/suite/mailnews/addrbook/addressbook.js b/suite/mailnews/addrbook/addressbook.js
index a599b2fdcf..cc5bfb2598 100644
--- a/suite/mailnews/addrbook/addressbook.js
+++ b/suite/mailnews/addrbook/addressbook.js
@@ -353,8 +353,8 @@ function SetStatusText(total)
         statusText = gAddressBookBundle.getString("noMatchFound");
       } else {
         statusText = PluralForm
-          .get(total, gAddressBookBundle.getString("matchesFoundCount"))
-          .replace("%S", total);
+          .get(total, gAddressBookBundle.getString("matchesFound"))
+          .replace("#1", total);
       }
     }
     else