With last version of Firefox 58 your Addon does not work anymore. I got this error: "Reading manifest: Error processing key: An unexpected property was found in the WebExtension manifest.". I use the 1Password 4.x for Windows (Windows 10 64 bit). I tried to reset Firefox, reinstall the Addon and 1stPassword is updated. How to resolve it?
1Password Version: 4.6.x
Extension Version: Not Provided
OS Version: Windows 10 64 bit
Sync Type: Dropbox