Recent Firefox updates require signing into your Norton account first to enable signing into the Vault. IE is not affected. Norton says it's the consequence of recent FF updates. Chrome and Edge may not be affected, but I haven't tested.
Otherwise, Norton Password Manager is as good as it's always been.

Latest 6.7.1.6 is broken but previous version 6.6.3.5 still works under Win 10. Latest version first asks to login to Norton account then unable to login to Password Manager and generates error that says "something went wrong". Removed 6.7.1.6, reinstalled 6.6.3.5 and everything works again.

EDIT: changed star rating from 1 star to 4 stars since previous version 6.6.3.5 works great before updating to 6.7.1.6. shortly after uploaded to Mozilla.

Absolutely useless. I have made repeated attempts to import my passwords from another manager program (I have followed the instructions to the letter) without any success. First I kept getting error messages saying that there was an error and I should be sure the file wasn't corrupted (it wasn't.) Then, after about 15 tries, I began getting a message saying that the transfer was successful but there were no passwords appearing in my vault. I restarted Firefox. I rebooted the computer. I removed and reinstalled the password manager. I tried to connect to Norton support via their chat function but that was a waste of time. The estimated wait time went from 2 minutes to 6 minutes to 11 minutes. I finally closed the chat window when it jumped up to 16 minutes. Bottom line, don't waste your time with this useless program. There are other and better options available.

It would be great... if only I could set up a password vault. Something's broken, and it keeps saying "something went wrong, please try again later". That's not very helpful, Symantec. Yet to report problem to Symantec.

The first problem that I found was that copying and pasting the URL that needs the PW does not work. Had to use DOS shortcut to make it work (CTRL/V).
Second, the server is down. Apparently, Norton does not feel that this feature of its software is very important. It if stays down, I am removing this add-on forever.

It works on my Windows 10 PC desktop. They upgrade it regularly, work out the glitches later but it still manages to function- on the *desktop* where original NS File lives. However, I have never been successful: Saving or printing NPW addresses/passwords anywhere. The program will not allow it to be printed nor saved (in the event of a crash why not?). Painfully learned lessons: Never rely on Norton Cloud nor their separately,annually c$arged NOLBU Program. So, NPM does not funciton on Android products: Amz Fire10 Tablet (ok, nothing works w/Silk), LG-G6 SmartPhone, regardless how many times it's been downloaded, Symantec does not care that I've been overcharged annually for NS & it's promise of "Up to 5 Devices", nor do they want to believe (care) that Auto-Renewal "Is Disabled every year!". It has re-abled itself , w/out Notice and there is no equivalent word translatable between America (English) and India for "Refund"- not in Chat or in Call Centers. Caveat: When experimenting by downloading the entire, memory hog, NS Program, enabling *every* feature of NS on "Other Devices" , PWM functioned, albeit slowly & sporadically. The Trade Off is obvious, a bad memory for the willingness to provide Symantec 100% Permission to manage my devices. Never gain.

Extension is broken and reports server error.

constantly requires password change from machine to machine