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The optional ZeroKeyUSB Web Link extension for Chrome/Edge speeds up logins: click the toolbar icon on a login page and the device jumps to the matching site and focuses the login field — you just pick the site on the device and it types the credential.
The extension never sees your password. It only tells the device which letter to look for and focuses a field; the credential is typed by the device after you physically pick it. How it works under the hood: Browser link.

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Install

1

Load the extension

Open chrome://extensions, turn on Developer mode, choose Load unpacked and select the chrome-extension/ folder.
2

Link your device (once)

Click the toolbar icon → Connect ZeroKeyUSB…, then pick the device’s port on the page that opens. It is remembered afterwards.
The toolbar icon shows a green dot when the device is linked and a grey dot when it isn’t.

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Using it

1

Open the site

Go to a website where you have an account, and make sure the ZeroKeyUSB is plugged in and unlocked.
2

Click the icon

The device jumps to the site’s first letter and the page’s login field gets focused.
3

Pick and type

Choose the matching site on the device and press — it types your username and password.

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Turning it off

Don’t want it? On the device, set Menu → Tools → Chrome: Off and it will ignore the extension entirely. It ships On.
It works on most login pages. Sites that split the username and password across separate screens (some Google/Microsoft flows) may not fill correctly.