Troubleshooting

The connection dot#

The popup and the options page show a dot for the monloader connection:

• green (connected) - monloader answered and accepted the token.
• red (unreachable) - no answer at the configured URL. Check that monloader is running, that the URL in settings is the one your browser can reach (open it in a tab to be sure), and that you accepted the host permission prompt (below).
• amber (token rejected) - monloader answered but refused the token (a 401): before the first pairing, after the token was revoked, or after a monloader reinstall. Fix: connect to monloader in options, then approve the request in monloader under Settings -> pairing.

“host access not granted”#

The extension can only talk to an origin you have approved. If you dismissed or declined the browser’s permission prompt when saving the URL, or revoked the permission later, every call fails - and from the browser’s side a missing permission looks exactly like a dead server. The fix: open options, click save or connect to monloader, and accept the prompt. If monloader is running and the popup still says it cannot be reached, check this before you go looking at the server.

An image is missing from a scan#

The chooser only lists what monbooru can store: jpg, png, gif and webp images, mp4 and webm video. An svg logo, an avif or heic photo, or an mkv clip is left out, because monloader refuses those before it starts downloading. Tiny images are dropped too - see min image size.

After changing the monloader URL#

Saving a new URL clears the stored token, so the dot reads “token rejected” until you pair again.