Hi
3 - Have you tried changing the order of the sh404SEF and language filter system plugins?
nope, never did that.
I was suggesting this as a possible solution, not a question. It seems the language filter redirect kicks in before the sh404SEF shURL redirect. So putting the language filter
after the sh404SEF plugin may solve the issue.
2) Can you believe me if I tell you that I did not select /fr/ as the default ? Yesterday, /en/ was the default, 10 minutes ago it was still /fr/ and now...it's /en/ again....
That's not what I'm talking about.
First, I'm not sure what you mean by "yesterday the default was /en/ and today is /fr"
The page you're presented by Joomla upon trying to reach xxxx.net depends on what was your last visit to the site, which language you visited last and what your browser default language is.
i didn't touch the Joomla language filter plugin
You should. Or at least look at the settings there and see what options you have.
From what you say, I think you're not the one who built the site?
Rgds