Problem using MozRepl and MozRepl::RemoteObject

[cf006]

Hi,
I am new on this forum and first I would like to greet all the perlmonks.
My question is about the use of MozRepl module.
I have installed the add-on MozRepl for firefox and started it. The MozRepl perl module is of course installed.
I would like to automate some tasks with firefox, and think it is a good idea to use MozRepl.
For simple examples, it seems to work good.
For instence, in the following code, after the connection to mozrepl, I load a new html page and execute some instructions, to get all the links in the page. Then, still using commands that I could use in a console mode, I create the function all_a without parameter to display all the links founded before using the javascript function 'alert', and finaly click on the fourth link of the list.

#!/usr/bin/perl -w
use strict;
use warnings;
use MozRepl;


my $repl = MozRepl->new;
$repl->setup;

$repl->execute('content.document.location.href="http://www.google.fr/f
+irefox"');


$repl->execute('repl.whereAmI()');


$repl->execute('repl.enter(content)');

$repl->execute('a = document.getElementsByTagName("a")');

$repl->execute('function all_a() {var all=""; for(var i=0;i<a.length;i
+++) {all += i + ":" +a[i] + "\n"; } alert(all); };');

$repl->execute('all_a()');

$repl->execute('a[3].click()');


<>;

That's good but not satisfying, especially if I want to explore deeper data contained in the DOM, and that's why I thought to use MozRepl::RemoteObject, in addition to MozRepl. So, after reading the manual of MozRepl::RemoteObject, I proceed as follow, to connect the two modules :

#!/usr/bin/perl -w
use strict;
use warnings;
use MozRepl;
use MozRepl::RemoteObject;

my $repl = MozRepl->new;

$repl->setup({
        log => [qw/ error info /],
        plugins => { plugins => [qw[ JSON2 ]] },
    }); 

my $bridge = MozRepl::RemoteObject->install_bridge(repl => $repl);

<>;

But, at this stage, I have the following error message :
"command timed-out at C:/Perl/site/lib/MozRepl/Client.pm line 186"
and the script dies.
I reproduced this result with Windows XP and with Linux Debian Squeeze.
I try to make a script working for now several weeks, and I didn't manage to automate tasks with firefox. I wonder if I should not give up.
Is it the right way to do what I want ?
Thank's for any information that could help me.
cf006