Mails Hacking

Hi,

Is there any way of hacking the Gmail, Yahoo and Facebook without using the phishing concepts, if tes please name them. And lalso please paste links for the tutorials.

Is there any password cracking tool around.

Thanks,
Ishaq

 

well there is a ad don for Firefox which is called firesheep which could help

 

there is a Firefox addon that is called firesheep try that.

 

Thank you all for replying.

May i know with what versions of firefox is it compatible.?