This would be awesome, if I could only get it to work. I can paste "onepassword://extension/search/gmail" into Firefox and it opens my gmail password in 1Password mini but if I Set a variable or even just create a macro to "Open URL" with the default extension and use the same URL as above, I get an error that the URL is invalid and the macro stops.
@swkent, do you want to use the open also for apps or the admin password?
Since the script variant stopped working for me as well and Agilebits doesn't want to change anything about it, I open the 1Password Mini window with the ShortCut and use an Aoolescript for everything else.
In the post you can see my variants to the Autofill Login:
@appleianer Looking to use it for apps. Possibly for login in the future but I have a lot of web apps I run using epichrome or nativfier. Hate having to install, login and update the extension all the time.