I am not sure if that is possible. I did however notice this article from lastpass * How do I export my LastPass data? <br/> https://lastpass.com/support.php?cmd=showfaq&id=1206 <blockquote> 1. You can go to your LastPass Icon > More Options > Advanced > Export in order to export your usernames and passwords to a .csv file (comma separated value)</blockquote> That will enable you to create a listing, possibly in a table or spreadsheet if you have a lot of data. You would then need to manually enter it in to Firefox. (Unless someone knows of any add-on or better method.)