Since few days, Safari stopped cooperating with the 1P extension.
I've tried reinstalling the extension but getting the error:
1Password Version: 6.6.4
Extension Version: 4.6.4
OS Version: OSX 10.11.6
Sync Type: iCloud
I'm sorry you're seeing this error, it is a common issue with Safari unfortunately. I recommend trying this to work around it:
Uninstall the existing extension if you have one installed:
To do this open Safari and choose Safari > Preferences from the menu bar. Click Extensions, then click 1Password. Click Uninstall and confirm your choice.
Install the extension from the Safari Extensions Gallery.
Did that help?
Looking forward to hearing back.
Thanks - this worked for me today
Awesome, I'm glad that was helpful for you - thanks for letting us know! We're here for you if you need more help with 1Password.