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diff --git a/devtools/client/debugger/src/actions/utils/create-store.js b/devtools/client/debugger/src/actions/utils/create-store.js
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+++ b/devtools/client/debugger/src/actions/utils/create-store.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/>. */
+
+// @flow
+
+/* global window */
+
+/**
+ * Redux store utils
+ * @module utils/create-store
+ */
+
+import { createStore, applyMiddleware, type StoreCreator } from "redux";
+import { waitUntilService } from "./middleware/wait-service";
+import { log } from "./middleware/log";
+import { promise } from "./middleware/promise";
+import { thunk } from "./middleware/thunk";
+import { timing } from "./middleware/timing";
+import { context } from "./middleware/context";
+
+/**
+ * @memberof utils/create-store
+ * @static
+ */
+type ReduxStoreOptions = {
+  makeThunkArgs?: Function,
+  history?: Array<Object>,
+  middleware?: Function[],
+  log?: boolean,
+  timing?: boolean,
+};
+
+/**
+ * This creates a dispatcher with all the standard middleware in place
+ * that all code requires. It can also be optionally configured in
+ * various ways, such as logging and recording.
+ *
+ * @param {object} opts:
+ *        - log: log all dispatched actions to console
+ *        - history: an array to store every action in. Should only be
+ *                   used in tests.
+ *        - middleware: array of middleware to be included in the redux store
+ * @memberof utils/create-store
+ * @static
+ */
+const configureStore = (
+  opts: ReduxStoreOptions = {}
+): StoreCreator<any, any, any> => {
+  const middleware: any = [
+    thunk(opts.makeThunkArgs),
+    context,
+    promise,
+
+    // Order is important: services must go last as they always
+    // operate on "already transformed" actions. Actions going through
+    // them shouldn't have any special fields like promises, they
+    // should just be normal JSON objects.
+    waitUntilService,
+  ];
+
+  if (opts.middleware) {
+    opts.middleware.forEach(fn => middleware.push(fn));
+  }
+
+  if (opts.log) {
+    middleware.push(log);
+  }
+
+  if (opts.timing) {
+    middleware.push(timing);
+  }
+
+  // Hook in the redux devtools browser extension if it exists
+  const devtoolsExt =
+    typeof window === "object" && window.devToolsExtension
+      ? window.devToolsExtension()
+      : f => f;
+
+  return applyMiddleware(...middleware)(devtoolsExt(createStore));
+};
+
+export default configureStore;