To provide an excellent filling experience for everyone on iOS, you will absolutely want to make use of Apple's Associated Domains support to ensure that the Password Manager gets contextual information about your app when they attempt to use the system's Password AutoFill functionality. In the intervening time the landscape has changed dramatically and we feel the time has arrived to let go of this extension that served many in the community well. When we originally shipped this extension it provided a critical means of filling into web pages and applications on a system that was brand new for all of us. With Password AutoFill in iOS 12 and the addition of Safari Web Extensions in iOS 15 we have decided that going forward we will not be continuing support for this action extension. As 1Password continues to evolve on iOS we’ve been given new opportunities to take advantage of additions to the operating system that fulfill some of the functionality originally provided by our action extension.

1password safari ios