Today's update (1Password 6 Version 6.8.5 (685004), AgileBits Store) breaks the Safari extension. It still works in Chrome and Firefox, but doesn't respond to a click in Safari. The right-click dropdown menu version is also broken.
1Password Version: 6.8.5 (685004)
Extension Version: 4.6.12
OS Version: 10.13.2
Sync Type: Dropbox