Rated 3 out of 5 stars

I've used this add-on for years, but had some problems with Firefox recently, so I had to use the "Firefox reset" option (which uninstalls all addons but keeps data safe).
Yesterday, I installed it again (new version?), and somehow all my passwords storage got wiped clean.

Thanks a bunch, man!

This review is for a previous version of the add-on (2.9.1-signed). 

Sorry to hear that happened to you. You should seek help at Mozilla Support https://support.mozilla.org/ since Saved Password Editor does not handle storing your passwords. That is the job of Mozilla's Password Manager that is built into Firefox. (That is why this add-on is called Saved Password Editor and not Saved Password Manager, as it provides a few enhancements to what is already there.)

I'm not an expert about it, but from my experience, Refresh Firefox creates a new profile and copies in data from the old one. I've heard of it not always copying everything it should, so maybe that happened to you. Your passwords should still be in the old profile, if you haven't deleted it. Anyway, please go to Mozilla Support https://support.mozilla.org/ for further help about it.