1Password touch add-on, plug-in, extension for Mobile Safari
Mobile Safari cannot be extended like Safari on the Mac can. For this reason, we are not able to integrate 1Password right into the browser on iOS. You will not see a 1Password button in the Mobile Safari toolbar.
To optimize your 1Password experience, therefore, we have built a web browser into 1Password for iPhone. When you tap a login item’s URL, 1Password will open the site in the browser and fill the login form.