new file mode 100644
--- /dev/null
+++ b/devtools/client/shared/vendor/RESELECT_LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015-2016 Reselect Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

new file mode 100644
--- /dev/null
+++ b/devtools/client/shared/vendor/RESELECT_UPGRADING
@@ -0,0 +1,7 @@
+Follow these steps when adding/upgrading the reselect.js module:
+
+1. git clone https://github.com/reactjs/reselect - clone the repo
+2. npm install - compile the sources to a compiled JS module file
+3. cp dist/reselect.js $DEST_DIR - copy the compiled file to Firefox source tree
+
+The package version used it currently 2.5.4 (last update in bug 1310573)

--- a/devtools/client/shared/vendor/moz.build
+++ b/devtools/client/shared/vendor/moz.build
@@ -15,12 +15,13 @@ if CONFIG['DEBUG_JS_MODULES'] or CONFIG[
     modules += ['react-dev.js']
 
 modules += [
     'react-dom.js',
     'react-proxy.js',
     'react-redux.js',
     'react.js',
     'redux.js',
+    'reselect.js',
     'seamless-immutable.js',
 ]
 
 DevToolsModules(*modules)

new file mode 100644
--- /dev/null
+++ b/devtools/client/shared/vendor/reselect.js
@@ -0,0 +1,136 @@
+(function (global, factory) {
+  if (typeof define === "function" && define.amd) {
+    define('Reselect', ['exports'], factory);
+  } else if (typeof exports !== "undefined") {
+    factory(exports);
+  } else {
+    var mod = {
+      exports: {}
+    };
+    factory(mod.exports);
+    global.Reselect = mod.exports;
+  }
+})(this, function (exports) {
+  'use strict';
+
+  exports.__esModule = true;
+  exports.defaultMemoize = defaultMemoize;
+  exports.createSelectorCreator = createSelectorCreator;
+  exports.createStructuredSelector = createStructuredSelector;
+
+  function _toConsumableArray(arr) {
+    if (Array.isArray(arr)) {
+      for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) {
+        arr2[i] = arr[i];
+      }
+
+      return arr2;
+    } else {
+      return Array.from(arr);
+    }
+  }
+
+  function defaultEqualityCheck(a, b) {
+    return a === b;
+  }
+
+  function defaultMemoize(func) {
+    var equalityCheck = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultEqualityCheck;
+
+    var lastArgs = null;
+    var lastResult = null;
+    var isEqualToLastArg = function isEqualToLastArg(value, index) {
+      return equalityCheck(value, lastArgs[index]);
+    };
+    return function () {
+      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      if (lastArgs === null || lastArgs.length !== args.length || !args.every(isEqualToLastArg)) {
+        lastResult = func.apply(undefined, args);
+      }
+      lastArgs = args;
+      return lastResult;
+    };
+  }
+
+  function getDependencies(funcs) {
+    var dependencies = Array.isArray(funcs[0]) ? funcs[0] : funcs;
+
+    if (!dependencies.every(function (dep) {
+      return typeof dep === 'function';
+    })) {
+      var dependencyTypes = dependencies.map(function (dep) {
+        return typeof dep;
+      }).join(', ');
+      throw new Error('Selector creators expect all input-selectors to be functions, ' + ('instead received the following types: [' + dependencyTypes + ']'));
+    }
+
+    return dependencies;
+  }
+
+  function createSelectorCreator(memoize) {
+    for (var _len2 = arguments.length, memoizeOptions = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+      memoizeOptions[_key2 - 1] = arguments[_key2];
+    }
+
+    return function () {
+      for (var _len3 = arguments.length, funcs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+        funcs[_key3] = arguments[_key3];
+      }
+
+      var recomputations = 0;
+      var resultFunc = funcs.pop();
+      var dependencies = getDependencies(funcs);
+
+      var memoizedResultFunc = memoize.apply(undefined, [function () {
+        recomputations++;
+        return resultFunc.apply(undefined, arguments);
+      }].concat(memoizeOptions));
+
+      var selector = function selector(state, props) {
+        for (var _len4 = arguments.length, args = Array(_len4 > 2 ? _len4 - 2 : 0), _key4 = 2; _key4 < _len4; _key4++) {
+          args[_key4 - 2] = arguments[_key4];
+        }
+
+        var params = dependencies.map(function (dependency) {
+          return dependency.apply(undefined, [state, props].concat(args));
+        });
+        return memoizedResultFunc.apply(undefined, _toConsumableArray(params));
+      };
+
+      selector.resultFunc = resultFunc;
+      selector.recomputations = function () {
+        return recomputations;
+      };
+      selector.resetRecomputations = function () {
+        return recomputations = 0;
+      };
+      return selector;
+    };
+  }
+
+  var createSelector = exports.createSelector = createSelectorCreator(defaultMemoize);
+
+  function createStructuredSelector(selectors) {
+    var selectorCreator = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : createSelector;
+
+    if (typeof selectors !== 'object') {
+      throw new Error('createStructuredSelector expects first argument to be an object ' + ('where each property is a selector, instead received a ' + typeof selectors));
+    }
+    var objectKeys = Object.keys(selectors);
+    return selectorCreator(objectKeys.map(function (key) {
+      return selectors[key];
+    }), function () {
+      for (var _len5 = arguments.length, values = Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
+        values[_key5] = arguments[_key5];
+      }
+
+      return values.reduce(function (composition, value, index) {
+        composition[objectKeys[index]] = value;
+        return composition;
+      }, {});
+    });
+  }
+});

--- a/toolkit/content/license.html
+++ b/toolkit/content/license.html
@@ -132,16 +132,17 @@
 #endif
       <li><a href="about:license#praton">praton License</a></li>
       <li><a href="about:license#qcms">qcms License</a></li>
       <li><a href="about:license#qrcode-generator">QR Code Generator License</a></li>
       <li><a href="about:license#react">React License</a></li>
       <li><a href="about:license#react-redux">React-Redux License</a></li>
       <li><a href="about:license#xdg">Red Hat xdg_user_dir_lookup License</a></li>
       <li><a href="about:license#redux">Redux License</a></li>
+      <li><a href="about:license#reselect">Reselect License</a></li>
       <li><a href="about:license#hunspell-ru">Russian Spellchecking Dictionary License</a></li>
       <li><a href="about:license#sctp">SCTP Licenses</a></li>
       <li><a href="about:license#skia">Skia License</a></li>
       <li><a href="about:license#snappy">Snappy License</a></li>
       <li><a href="about:license#sprintf.js">sprintf.js License</a></li>
       <li><a href="about:license#sunsoft">SunSoft License</a></li>
       <li><a href="about:license#superfasthash">SuperFastHash License</a></li>
       <li><a href="about:license#unicode">Unicode License</a></li>
@@ -4681,16 +4682,46 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOU
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 </pre>
 
+<hr>
+
+<h1><a id="reselect"></a>Reselect License</h1>
+
+<p>This license applies to the file
+<span class="path">devtools/client/shared/vendor/reselect.js</span>.</p>
+<pre>
+The MIT License (MIT)
+
+Copyright (c) 2015-2016 Reselect Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+</pre>
+
     <hr>
 
     <h1><a id="hunspell-ru"></a>Russian Spellchecking Dictionary License</h1>
 
     <p>This license applies to the Russian Spellchecking Dictionary. (This
       code only ships in some localized versions of this product.)</p>
 
 <pre>