Remove trailing bracket

bedrock/firefox/templates/firefox/accounts-2019.html

@@ -114,7 +114,7 @@
       {% if has_signed_in_copy %}
         {{ _('Get it all on every device, without feeling trapped in a single operating system.') }}
       {% else %}
-        {{ _('And get it all on every device, without feeling trapped in a single operating system.') }}}
+        {{ _('And get it all on every device, without feeling trapped in a single operating system.') }}
       {% endif %}
     </p>
   </div>