I just read in docs …/… Special:RecentChanges there is a change in Network.IsConnected and I am asking myself why people does not used it instead of directly firing the default browser ?

Remember: how do the user knows that this MenuItem will fire his default browser ?
(even if it is the fashion of the day !)

IsConnected just tells you that there is a local network connection, not that the computer has access to the internet.

Argh ! I read too fast !

Thank you Greg for the correct information.