1. create two different WWW::Mechanize::Firefox objects one after the other. => seems to work (at least for opening the two pages in two different tabs), but i get this warning when i create the second browser: 
Subroutine MozRepl::__load_plugins redefined at C:/strawberry/perl/sit
+e/lib/Module/Pluggable/Fast.pm line 104, <DATA> line 1.

[download]

That warning is an unfortunate side-effect of Module::Pluggable::Fast, the plug-in system used by MozRepl. It is otherwise harmless.

2. get the current browser's Firefox::Application, open a new tab and select it. finally, try to use the Application's browser with Firefox::Application::browser(), and get() a page with it. => it gives me this output : 
Use of uninitialized value in concatenation (.) or string at C:/strawb
+erry/perl/site/lib/MozRepl/RemoteObject.pm line 835, <> line 3. MozRe
+pl::RemoteObject: : Object has no function get at test_tabs_applicati
+on.pl line 72.

[download]
I suppose it was simply not the right thing to do.

Exactly - a Firefox tab has vastly different methods from WWW::Mechanize(::Firefox). There should be a way to construct another WWW::Mechanize::Firefox object by supplying a freshly connected tab, but that is no option yet. Maybe in a later version, but as you can simply create another WWW::Mechanize::Firefox object, it is no high priority.

In reply to Re: How to control two tabs at the same time with WWW::Mechanize::Firefox by Corion
in thread How to control two tabs at the same time with WWW::Mechanize::Firefox by mascip

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