The LastPass add-on has become complete garbage since they migrated to the WebExtensions API. In the last several months I've experienced bugs in every single part of the app: logging in, generating a password, retrieving stored passwords, saving new sites, etc. Not to mention the severe memory leaks.

I discontinued my premium membership earlier this year after getting sick of keeping a separate Chrome window open to copy passwords from. Now even the Chrome service doesn't work properly ("Error: invalid response" when I try to update a password). And they had the nerve to increase their subscription price this year!?

Don't waste your time with LastPass, spend the $3 a month and use 1Password instead.