If you're used to the clunkier workflow of copy-pasting from a separate app, then it's much easier to absent-mindedly repeat it for a not-quite-right url.
I have 1Password configured to require password to unlock once per 24 hours. Rest of the time I have it running in the background or unlock it with TouchID (on the MacBook Pro) or FaceID (on the iPhone).
It also helps that I don’t really sign into a ton of services all the time. Mostly I log into HN, and GitHub, and a couple of others. A lot of my usage of 1Password is also centered around other kinds of passwords, like passwords that I use to protect some SSH keys, and passwords for the disk encryption of external hard drives, etc.
Also a great way of missing out on one of the best protections of password managers; completely eliminating phishing even without requiring thinking. And yes, still requires you to avoid manually copy-pasting without thinking when it doesn't work, but so much better than the current approach you're taking, which basically offers 0 protection against phishing.
Rouge browser extensions for example could redirect you away from the bank website (if the bank website has poor security) when you go there, so even if you use the URL from the password manager, if you don't use the autofill feature, you can still get phished. And if the autofill doesn't show, and you mindlessly copy-paste, you'd still get phished. It's really the autofill that protects you here, not the URL in the password manager.
Concretely, I think for redirect browser extension users I'd use "webRequest" permission, while for in page access you'd need a content-script for specific pages, so in practice they differ in what the extension gets access to.
Likewise I have links in the bookmarks bar on desktop.
I use these links to navigate to the main sites I use. And log in from there.
I don’t really need to think that way either.
But I agree that eliminating the possibility all-together is a nice benefit of using the browser integration, that I am missing out on by not using it.
It's better, but calling it so much better [that it's unreasonable to forgo the browser extension] is a bit silly to me.
1. Go to website login page
2. trigger the global shortcut that will invoke your password manager
3. Your password manager will appear with the correct entry usually preselected, if not type 3 letters of the site's name.
4. Press enter to perform the auto type sequence.
There, an entire class of exploits entirely avoided. No more injecting third party JS in all pages. No more keeping an listening socket in your password manager, ready to give away all your secrets.
The tradeoff? You now have to manually press ctrl+shift+space or whatever instead when you need to log in.
When you use autofill, the native application will prompt to disclose credentials to the extension. At that point, only those credentials go over the wire. Others remain inaccessible to the extension.