--- a/devtools/client/inspector/fonts/components/FontEditor.js
+++ b/devtools/client/inspector/fonts/components/FontEditor.js
@@ -1,17 +1,16 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 "use strict";
 
 const { createFactory, PureComponent } = require("devtools/client/shared/vendor/react");
 const dom = require("devtools/client/shared/vendor/react-dom-factories");
-const { PluralForm } = require("devtools/shared/plural-form");
 const PropTypes = require("devtools/client/shared/vendor/react-prop-types");
 
 const FontMeta = createFactory(require("./FontMeta"));
 const FontPropertyValue = createFactory(require("./FontPropertyValue"));
 const FontSize = createFactory(require("./FontSize"));
 const FontStyle = createFactory(require("./FontStyle"));
 const FontWeight = createFactory(require("./FontWeight"));
 
@@ -81,36 +80,32 @@ class FontEditor extends PureComponent {
     });
   }
 
   renderFamilesNotUsed(familiesNotUsed = []) {
     if (!familiesNotUsed.length) {
       return null;
     }
 
-    const familiesNotUsedLabel = PluralForm
-      .get(familiesNotUsed.length, getStr("fontinspector.familiesNotUsedLabel"))
-      .replace("#1", familiesNotUsed.length);
-
     const familiesList = familiesNotUsed.map(family => {
       return dom.div(
         {
           className: "font-family-unused",
         },
         family
       );
     });
 
     return dom.details(
       {},
       dom.summary(
         {
           className: "font-family-unused-header",
         },
-        familiesNotUsedLabel
+        getStr("fontinspector.familiesNotUsedLabel")
       ),
       familiesList
     );
   }
 
   /**
    * Render font family, font name, and metadata for all fonts used on selected node.
    *

--- a/devtools/client/locales/en-US/font-inspector.properties
+++ b/devtools/client/locales/en-US/font-inspector.properties
@@ -56,13 +56,11 @@ fontinspector.fontSizeLabel=Size
 # LOCALIZATION NOTE (fontinspector.fontWeightLabel): This label is shown next to the UI
 # in the font editor which allows the user to change the font weight.
 fontinspector.fontWeightLabel=Weight
 
 # LOCALIZATION NOTE (fontinspector.fontItalicLabel): This label is shown next to the UI
 # in the font editor which allows the user to change the style of the font to italic.
 fontinspector.fontItalicLabel=Italic
 
-# # LOCALIZATION NOTE (fontinspector.familiesNotUsedLabel): Semi-colon list of
-# plural forms.
-# See: http://developer.mozilla.org/en/docs/Localization_and_Plurals
-# #1 is the number of unused font families
-fontinspector.familiesNotUsedLabel=1 not used;#1 not used
+# LOCALIZATION NOTE (fontinspector.familiesNotUsedLabel): Label for the list in the font
+# editor which contains the names of font families declared but not used.
+fontinspector.familiesNotUsedLabel=Unused font families