Pontoon: Update Italian (it) localization of AMO

Localization authors:
- Sara Todaro <sara.todaro@mozillaitalia.org>

locale/it/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: REMORA 0.1\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
 "POT-Creation-Date: 2017-02-20 16:16+0000\n"
-"PO-Revision-Date: 2017-02-21 17:16+0000\n"
+"PO-Revision-Date: 2017-02-21 16:31+0000\n"
 "Last-Translator: Sara Todaro <sara.todaro@mozillaitalia.org>\n"
 "Language-Team: Mozilla Italia\n"
 "Language: it\n"
@@ -1811,7 +1811,7 @@ msgstr "Non trovato"
 
 #: src/olympia/amo/templates/amo/404-responsive.html
 msgid "Firefox Add-ons"
-msgstr "Altri componenti aggiuntivi"
+msgstr "Componenti aggiuntivi per Firefox"
 
 #: src/olympia/amo/templates/amo/404-responsive.html
 msgid "Sorry, but we can't find anything at the address you entered. If you followed a link to an add-on, it's possible that add-on has been removed by its author."