problem enclosure tag and firefox [#2580529]

Hello,

I think there is a probleme with view rss module.... OR i dont understand how it works exactly
I explain me.

I create a new view and i add a rss display to my view.
I added all fields and when i click on preview button in view configuration , i have something like :

 <?xml version="1.0" encoding="utf-8" > <rss version="2.0" xml:base="http://cnes.dev:2080/fr" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd"> <channel> <title>Actualités</title>
 <description>Ma super description</description>
 <link>http://monsite.fr/fr</link>
 <atom:link rel="self" href="http://monsite.fr/fr/news/feed/1" />
 <item> <title>Evénement #4</title>
 <link>http://monsite.fr/fr/evenement-grand-public-4</link>
 <description>Extrait en français. Extrait en français. Extrait
			en français. Extrait en français. Extrait en français.
		</description>
 <author>admin</author>
 <enclosure>&lt;img typeof=&quot;foaf:Image&quot; src=&quot;http://monsite.fr/sites/default/files/styles/thumbnail/public/test/medias/espace3.jpeg?itok=jweJ2op5&quot; alt=&quot;Evénement #4&quot; /&gt;</enclosure>
 <guid isPermaLink="false">5449c850-ba6d-11e3-a5e2-0800200c9a66</guid>
 <pubDate>&lt;span class=&quot;date-display-single&quot; property=&quot;dc:date&quot; datatype=&quot;xsd:dateTime&quot; content=&quot;2020-11-09T13:00:00+01:00&quot;&gt;9 Novembre 2020&lt;/span&gt;</pubDate>
 <source url="http://monsite.fr/fr/news/feed/1">Actualités</source>
</item>
</channel>
</rss>

Everything seem OK , even when i save my view and and i test it with chrome on another windows ...

But, when i try to see my feed with firefox, my enclosure does not appear !?

More, with multiple node agregation, firefow cut my feed at first enclosure tag ..

Any idea ? ?