Worse addon - do not use! Rated 1 out of 5 stars
While password exporting (saving) seemed to work good, the extension almost completely failed to re-import the saved data!
If you count on that addon then you will be lost as well as your passwords. A time ago the author promised the problems would have been fixed, but obviously that is not the case.
That is particulary annoying because the passwords are really important data for me. :-((
Details: Both saved files (xml-format and csv-format failed to to read; xml completely, csv partitially)