diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/config/help.yml b/src/Symfony/Bundle/WebProfilerBundle/Resources/config/help.yml
new file mode 100644
index 0000000000000..c592aa7d4826b
--- /dev/null
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/config/help.yml
@@ -0,0 +1,3 @@
+cookies:
+    Doc: 'https://symfony.com/doc/%s/components/http_foundation.html#setting-cookies'
+    API: 'http://api.symfony.com/%s/Symfony/Component/HttpFoundation/Cookie.html'
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/request.html.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/request.html.twig
index cdf2839c6dcd2..7a2bb9b4e5437 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/request.html.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/request.html.twig
@@ -143,7 +143,7 @@
                     {{ include('@WebProfiler/Profiler/bag.html.twig', { bag: collector.requestattributes }, with_context = false) }}
                 {% endif %}
 
-                <h3>Cookies</h3>
+                <h3 {{ help_attrs('cookies') }}>Cookies</h3>
 
                 {% if collector.requestcookies.all is empty %}
                     <div class="empty">
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/base_js.html.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/base_js.html.twig
index ca69e371df281..0746d3e08e85b 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/base_js.html.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/base_js.html.twig
@@ -491,6 +491,28 @@
                         toggle.innerHTML = currentContent !== altContent ? altContent : originalContent;
                     });
                 }
+            },
+
+            createHelp: function() {
+                var helps = document.querySelectorAll('[data-help]');
+
+                for (var i = 0; i < helps.length; i++) {
+                    var root = document.createElement('div');
+                    Sfjs.addClass(root, 'help');
+                    var container = document.createElement('div');
+                    root.appendChild(container);
+                    helps[i].appendChild(root);
+
+                    // Add links
+                    var links = JSON.parse(helps[i].getAttribute('data-help'));
+                    for (var key in links) {
+                        var link = document.createElement('a');
+                        link.textContent = key;
+                        link.setAttribute('href', links[key]);
+                        link.setAttribute('target', '_blank');
+                        container.appendChild(link);
+                    }
+                }
             }
         };
     })();
@@ -499,6 +521,7 @@
         Sfjs.createTabs();
         Sfjs.createToggles();
         Sfjs.renderAjaxRequests();
+        Sfjs.createHelp();
     });
 
 /*]]>*/</script>
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig
index e3a0168553224..131d348f35fbf 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig
+++ b/src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig
@@ -994,3 +994,65 @@ table.logs .metadata {
         margin-left: 2px;
     }
 }
+
+{# Help tooltip
+   ========================================================================= #}
+
+.help {
+    display: inline-block;
+    text-align: center;
+    background-color: #e0e0e0;
+    border-radius: 50%;
+    width: 21px;
+    height: 21px;
+    font-size: 13px;
+    line-height: 23px;
+    cursor: default;
+    margin: 0 5px;
+    vertical-align: middle;
+    border: 1px solid #c1c1c1;
+    text-shadow: 0 0 2px #444444;
+}
+
+.help:before {
+    content: '?';
+    font-weight: bold;
+    color: #fff;
+}
+
+.help:hover div {
+    display: block;
+}
+
+.help div {
+    display: none;
+    background-color: #e0e0e0;
+    padding: 8px;
+    width: auto;
+    position: absolute;
+    border-radius: 3px;
+    box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.2);
+    border: 1px solid #444444;
+    color: #FFF;
+    font-size: 13px;
+    margin-top: 5px;
+    line-height: 1.4;
+}
+
+.help div:before {
+    position: absolute;
+    content: '';
+    width: 0;
+    height: 0;
+    border: 6px solid transparent;
+    border-bottom-color: #444444;
+    left: 4px;
+    top: -12px;
+}
+
+.help div a {
+    color: black;
+    padding: 0 5px;
+    text-shadow: none;
+    font-weight: bold;
+}
diff --git a/src/Symfony/Bundle/WebProfilerBundle/Twig/WebProfilerExtension.php b/src/Symfony/Bundle/WebProfilerBundle/Twig/WebProfilerExtension.php
index 032d6f08bbfb2..5656fdf734494 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/Twig/WebProfilerExtension.php
+++ b/src/Symfony/Bundle/WebProfilerBundle/Twig/WebProfilerExtension.php
@@ -14,6 +14,8 @@
 use Symfony\Component\HttpKernel\DataCollector\Util\ValueExporter;
 use Symfony\Component\VarDumper\Cloner\Data;
 use Symfony\Component\VarDumper\Dumper\HtmlDumper;
+use Symfony\Component\HttpKernel\Kernel;
+use Symfony\Component\Yaml\Yaml;
 
 /**
  * Twig extension for the profiler.
@@ -27,6 +29,11 @@ class WebProfilerExtension extends \Twig_Extension_Profiler
      */
     private $valueExporter;
 
+    /**
+     * @var array
+     */
+    private $helpLinks;
+
     /**
      * @var HtmlDumper
      */
@@ -72,6 +79,7 @@ public function getFunctions()
         return array(
             new \Twig_SimpleFunction('profiler_dump', $profilerDump, array('is_safe' => array('html'), 'needs_environment' => true)),
             new \Twig_SimpleFunction('profiler_dump_log', array($this, 'dumpLog'), array('is_safe' => array('html'), 'needs_environment' => true)),
+            new \Twig_SimpleFunction('help_attrs', array($this, 'help'), array('is_safe' => array('html'))),
         );
     }
 
@@ -120,6 +128,26 @@ public function dumpValue($value)
         return $this->valueExporter->exportValue($value);
     }
 
+    public function help($category)
+    {
+        if (!$this->helpLinks) {
+            $this->helpLinks = Yaml::parse(file_get_contents(__DIR__.'/../Resources/config/help.yml'));
+        }
+
+        if (!isset($this->helpLinks[$category])) {
+            throw new \Exception(sprintf('Help "%s" not found', $category));
+        }
+
+        $links = $this->helpLinks[$category];
+        array_walk($links, function (&$link) {
+            $link = sprintf($link, Kernel::MAJOR_VERSION.'.'.Kernel::MINOR_VERSION);
+        });
+
+        $html = 'data-help = "'.htmlspecialchars(json_encode($links, JSON_UNESCAPED_SLASHES)).'"';
+
+        return $html;
+    }
+
     /**
      * {@inheritdoc}
      */
diff --git a/src/Symfony/Bundle/WebProfilerBundle/composer.json b/src/Symfony/Bundle/WebProfilerBundle/composer.json
index 57656312bce8b..88eb63c5d299d 100644
--- a/src/Symfony/Bundle/WebProfilerBundle/composer.json
+++ b/src/Symfony/Bundle/WebProfilerBundle/composer.json
@@ -22,7 +22,8 @@
         "symfony/routing": "~2.8|~3.0",
         "symfony/twig-bridge": "~2.8|~3.0",
         "twig/twig": "~1.28|~2.0",
-        "symfony/var-dumper": "~3.2"
+        "symfony/var-dumper": "~3.2",
+        "symfony/yaml": "~2.8|~3.0"
     },
     "require-dev": {
         "symfony/config": "~2.8|~3.0",