Rated 5 out of 5 stars

Very useful for those who manage many different accounts in the same websites.

Strong Point:
The ability to attach lengthy metadata text in passwords and password protect them.

Weak Point:
Notwithstanding that the "Fill by Password Tags" context menu item shows up in the majority of typical login forms there are cases where it doesn't show up even though the default username/password filling of Firefox works smoothly with them.

Suggestions for Further Improvement:
Fix the issue of "Fill by Password Tags" in all cases of login forms

-------------------------------------
UPDATE:
After developer's reply I submitted him a case where the "Fill by Password Tags" don't work. He found the reason for not working and he is going to fix it in the next release soon. This puts another 'plus' for this highly recommended add-on

This review is for a previous version of the add-on (2.1.1.1-signed.1-signed). 

Thanks for your review. In order to fix the bug you're describing, it would definitely help if you could provide examples of forms where the filling command doesn't show up. Bug reports cannot be accepted here, so please file one at https://github.com/ddawson/Password-Tags/issues (GitHub account required), or email me at the address listed on this add-on's main listing page, and provide the details therein. Thanks.