www:mechanize:fireFox does not install propperly

hello dear linux-friends, good evening

well i want to run a little script with www::mechanize::FireFox

but i have some terrible errors - well i guess that i did not succeed in the installation of the www:mechanize:fireFox

what do you say …- this is the output

est_3.pl line 5.
linux-wyee:/home/martin/perl # perl test_3.pl
Can't locate WWW/Mechanize/Firefox.pm in @INC (@INC contains: /usr/lib/perl5/site_perl/5.14.2/i586-linux-thread-multi /usr/lib/perl5/site_perl/5.14.2 /usr/lib/perl5/vendor_perl/5.14.2/i586-linux-thread-multi /usr/lib/perl5/vendor_perl/5.14.2 /usr/lib/perl5/5.14.2/i586-linux-thread-multi /usr/lib/perl5/5.14.2 /usr/lib/perl5/site_perl/5.14.2/i586-linux-thread-multi /usr/lib/perl5/site_perl/5.14.2 /usr/lib/perl5/site_perl .) at test_3.pl line 5.
BEGIN failed--compilation aborted at test_3.pl line 5.
linux-wyee:/home/martin/perl #