Basic Auth Prompts
Login prompts like the one pictured below, called “basic” or “native” authentication prompts, will be automatically auto-filled by the Bitwarden Browser Extension if there is only 1 Login item with a matching URI. You can also use the Browser Extension’s Launch button to automatically open and log in to a basic auth-protected resource.
Auto-filling on basic auth prompts will, by default, use the Host URI match detection option so that auto-filling is more restrictive. This can be changed by setting the match detection option for the relevant Vault item.
If more than one Login item with a matching URI is found, the Browser Extension will not be able to auto-fill your credentials and you will need to manually copy/paste your username and password to log in.
Due to the way basic auth prompts are designed, auto-filling must be non-interactive. This means you cannot auto-fill on a basic auth prompt using the Tab view, context-menu, or keyboard shortcuts.