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diff --git a/devtools/client/inspector/flexbox/actions/flexbox-highlighter.js b/devtools/client/inspector/flexbox/actions/flexbox-highlighter.js
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+++ b/devtools/client/inspector/flexbox/actions/flexbox-highlighter.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/. */
+
+"use strict";
+
+/**
+ * This module exports thunks.
+ * Thunks are functions that can be dispatched to the Inspector Redux store.
+ *
+ * These functions receive one object with options that contains:
+ * - dispatch() => function to dispatch Redux actions to the store
+ * - getState() => function to get the current state of the entire Inspector Redux store
+ * - inspector => object instance of Inspector panel
+ *
+ * They provide a shortcut for React components to invoke the flexbox highlighter
+ * without having to know where the highlighter exists.
+ */
+
+module.exports = {
+  /**
+   * Toggle the flexbox highlighter for the given node front.
+   *
+   * @param {NodeFront} nodeFront
+   *        Node for which the highlighter should be toggled.
+   * @param {String} reason
+   *        Reason why the highlighter was toggled; used in telemetry.
+   */
+  toggleFlexboxHighlighter(nodeFront, reason) {
+    return async thunkOptions => {
+      const { inspector } = thunkOptions;
+      if (!inspector || inspector._destroyed) {
+        return;
+      }
+
+      await inspector.highlighters.toggleFlexboxHighlighter(nodeFront, reason);
+    };
+  },
+};