Once you have installed the browser plugin a small Signet icon should appear on your browser that will change its appearance depending on which actions are available:
The icon is gray if the Signet client is not running or your Signet is locked.
The icon is black if the Signet client is running and your Signet is unlocked, but there is no action available other than to foregrownd the client.
The icon is black with a yellow dot if the plugin associates the website with stored information, but cannot find a login form on the current page. You can then click on the icon to select a specific account in the client. This action will foreground the client to the specified account, and then use the Signet client as you would normally.
The icon is black with a green dot if the plugin recognizes the website and can autofill a username and password for one or more accounts. Each account is listed in two different sections in the menu. A click in the “Show in client” section will select the account in the client. A click in the “Login” section will request login and password data from the client to fill in the login form in order to log you into the website. When requesting a login you will need to press the device button before the plugin will log you in.