diff --git a/lib/Vroom/I18N/en.pm b/lib/Vroom/I18N/en.pm
index 0ae60da..33758e8 100644
--- a/lib/Vroom/I18N/en.pm
+++ b/lib/Vroom/I18N/en.pm
@@ -221,14 +221,15 @@ our %Lexicon = (
   "EXTENSION_REQUIRED"                   => "An extension is required",
   "VROOM_CHROME_EXTENSION"               => "To enable screen sharing, you need to install an extension. Click on the following link and refresh this page",
   "ALLOW_SCREEN_SHARING"                 => "You have to allow screen sharing",
-  "ALLOW_SCREEN_SHARING_ON_FF_s"         => "For security reasons, your browser do not allow screen sharing by default. " .
-                                            "To enable it, please follow these steps:<br>" .
-                                              "<ol>" .
+  "ALLOW_SCREEN_SHARING_ON_FF"           => "For security reasons, your browser do not allow screen sharing by default. " .
+                                            "To enable it, please follow these steps:",
+  "SCREE_SHARING_ABOUT_CONFIG_s"         => "<ol>" .
                                               "  <li>Open a new tab, and type <b>about:config</b> in the address bar</li>" .
                                               "  <li>Accept the warning by clicking on the \"<i>I'll be careful, I promise !</i>\" button</li>" .
                                               "  <li>Search for <b>screensharing</b> in the search bar</li>" .
                                               "  <li>Double click on <b>media.getusermedia.screensharing.allowed_domains</b> to edit it</li>" .
                                               "  <li>Add <b>%s</b> at the end of the list</li>" .
+                                              "  <li>You can now use the screen sharing feature</li>" .
                                               "</ol>",
   "PAUSE_MOH"                            => "Play/Pause music",
   "WAIT_WITH_MUSIC"                      => "Why don't you listen to some music while waiting for others ?",
@@ -289,8 +290,7 @@ our %Lexicon = (
   "HELP_SCREEN_SHARING"                  => "VROOM lets you share your screen (or a single window) with the other members of the room. For now " .
                                             "this feature is only available with Google Chrome (requires a small extension, " .
                                             "you'll be prompted to install it first time you try to share your screen) or Mozilla Firefox." .
-                                            "To enable this feature in Mozilla Firefox, you need to go in about:config, and add VROOM address " .
-                                            "usually vroom.im) to the list media.getusermedia.screensharing.allowed_domains",
+                                            "To enable this feature in Mozilla Firefox, follow these steps:",
   "OWNER_PRIVILEGES"                     => "Room creator's privileges",
   "HELP_OWNER_PRIVILEGES"                => "Room's creator (also called manager) has special privileges (compared to those who join " .
                                             "later, which are simple participants). For example, he can protect access with a password " .
diff --git a/lib/Vroom/I18N/fr.pm b/lib/Vroom/I18N/fr.pm
index 6e3d072..7d6b142 100644
--- a/lib/Vroom/I18N/fr.pm
+++ b/lib/Vroom/I18N/fr.pm
@@ -229,9 +229,9 @@ our %Lexicon = (
     "VROOM_CHROME_EXTENSION"                    => "Pour activer le partage d'écran, vous devez installer une extension, cliquez sur le " .
                                                    "lien ci-dessous, puis raffraîchissez cette page",
     "ALLOW_SCREEN_SHARING"                      => "Vous devez autoriser le partage d'écran",
-    "ALLOW_SCREEN_SHARING_ON_FF_s"              => "Par mesure de sécurité, votre navigateur n'autorise pas le partgage d'écran par défaut. " .
-                                                   "Pour l'activer, suivez ces étapes:<br>" .
-                                                   "<ol>" .
+    "ALLOW_SCREEN_SHARING_ON_FF"                => "Par mesure de sécurité, votre navigateur n'autorise pas le partgage d'écran par défaut. " .
+                                                   "Pour l'activer, suivez ces étapes:",
+    "SCREE_SHARING_ABOUT_CONFIG_s"              => "<ol>" .
                                                    "  <li>Ouvrez un nouvel onglet, et tapez <b>about:config</b> dans la barre d'adresse</li>" .
                                                    "  <li>Validez l'avertissement en cliquant sur le bouton \"<i>Je ferai attention, promis !</i>\"</li>" .
                                                    "  <li>Recherchez <b>screensharing</b> à l'aide de la barre de recherche</li>" .
@@ -302,8 +302,7 @@ our %Lexicon = (
                                                    "Pour l'instant, le partage d'écran ne fonctionne qu'avec les navigateurs Google Chrome " .
                                                    "(nécessite l'installation d'une petite extension qui vous sera proposée " .
                                                    "la première fois que vous essayez de partager votre écran) et Mozilla Firefox. Pour activer " .
-                                                   "cette fonction avec Firefox, il faut aller dans about:config et ajouter l'adresse de VROOM " .
-                                                   "(en général vroom.im) dans la liste media.getusermedia.screensharing.allowed_domains",
+                                                   "cette fonction avec Firefox, suivez ces étapes:",
     "OWNER_PRIVILEGES"                          => "Privilèges des créateurs de salon",
     "HELP_OWNER_PRIVILEGES"                     => "Le créateur d'un salon (aussi appelé gestionnaire) dispose de privilèges spéciaux " .
                                                    "sur ce dernier (par rapport à ceux qui rejoignent le salon après, qui ne seront que " .
diff --git a/templates/default/help.html.ep b/templates/default/help.html.ep
index 802a866..fd0b0ae 100644
--- a/templates/default/help.html.ep
+++ b/templates/default/help.html.ep
@@ -42,7 +42,12 @@
       </div>
       <div id="collapseScreenShare" class="panel-collapse collapse">
         <div class="panel-body">
-          <%==l 'HELP_SCREEN_SHARING' %>
+          <p>
+            <%=l 'HELP_SCREEN_SHARING' %>
+          </p>
+          <p>
+            <%== sprintf $self->l('SCREE_SHARING_ABOUT_CONFIG_s'), $self->req->url->to_abs->host %>
+          </p>
         </div>
       </div>
     </div>
diff --git a/templates/default/join.html.ep b/templates/default/join.html.ep
index 03e1884..54ef0ca 100644
--- a/templates/default/join.html.ep
+++ b/templates/default/join.html.ep
@@ -288,7 +288,8 @@
           </div>
           <div class="modal-body">
             <p>
-              <%== sprintf $self->l('ALLOW_SCREEN_SHARING_ON_FF_s'), $self->req->url->to_abs->host %>
+              <%=l 'ALLOW_SCREEN_SHARING_ON_FF' %>
+              <%== sprintf $self->l('SCREE_SHARING_ABOUT_CONFIG_s'), $self->req->url->to_abs->host %>
             </p>
           </div>
         </div>