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diff --git a/devtools/client/debugger/src/utils/text.js b/devtools/client/debugger/src/utils/text.js
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+++ b/devtools/client/debugger/src/utils/text.js
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+/* 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/>. */
+
+/**
+ * Utils for keyboard command strings
+ * @module utils/text
+ */
+
+const isMacOS = Services.appinfo.OS === "Darwin";
+
+/**
+ * Formats key for use in tooltips
+ * For macOS we use the following unicode
+ *
+ * cmd ⌘ = \u2318
+ * shift ⇧ – \u21E7
+ * option (alt) ⌥ \u2325
+ *
+ * For Win/Lin this replaces CommandOrControl or CmdOrCtrl with Ctrl
+ *
+ * @memberof utils/text
+ * @static
+ */
+export function formatKeyShortcut(shortcut) {
+  if (isMacOS) {
+    return shortcut
+      .replace(/Shift\+/g, "\u21E7")
+      .replace(/Command\+|Cmd\+/g, "\u2318")
+      .replace(/CommandOrControl\+|CmdOrCtrl\+/g, "\u2318")
+      .replace(/Alt\+/g, "\u2325");
+  }
+  return shortcut
+    .replace(/CommandOrControl\+|CmdOrCtrl\+/g, `${L10N.getStr("ctrl")}+`)
+    .replace(/Shift\+/g, "Shift+");
+}
+
+/**
+ * Truncates the received text to the maxLength in the format:
+ * Original: 'this is a very long text and ends here'
+ * Truncated: 'this is a ver...and ends here'
+ * @param {String} sourceText - Source text
+ * @param {Number} maxLength - Max allowed length
+ * @memberof utils/text
+ * @static
+ */
+export function truncateMiddleText(sourceText, maxLength) {
+  let truncatedText = sourceText;
+  if (sourceText.length > maxLength) {
+    truncatedText = `${sourceText.substring(
+      0,
+      Math.round(maxLength / 2) - 2
+    )}…${sourceText.substring(
+      sourceText.length - Math.round(maxLength / 2 - 1)
+    )}`;
+  }
+  return truncatedText;
+}