I have really depended on Saved Password Editor for a while. Looks like I’m in trouble. Ultimately, WebExtensions are supposed to be the future, but the API is not nearly complete enough for my needs right now.

https://addons.mozilla.org/en-US/firefox/addon/saved-password-editor/developers

Meet the Saved Password Editor Developer :: Add-ons for Firefox

Imported from Google+ — content and formatting may not be reliable