Scanning a page

When a page holds many images and no supported extractor - a forum thread, a blog post, an image dump - scan it and pick what to keep.

Open the popup and click scan page. The extension reads the images out of the current page (only then; nothing watches pages in the background) and opens the chooser beside the page: Chrome’s side panel on Chrome, the sidebar on Firefox. Because the chooser is docked, it stays open while you scroll the page to cross-check.

Almost everything a scan finds is a direct file URL, so scanned images arrive in monbooru untagged (see tagged or untagged).

The chooser

The panel shows the scanned page’s URL, a count, and a thumbnail grid with a checkbox on each image:

• [all] and [none] select or clear everything at once.
• send selected (N) at the bottom sends your picks. They are queued one at a time; the message under the button tracks progress and the queue view shows the jobs. If some fail to queue, the selection is kept so you can send again (re-sending the ones that made it is harmless - they come back as duplicates).
• Tiny images are already filtered out: anything smaller than the min image size setting (64 pixels by default) is dropped, which removes icons, buttons, and tracking pixels. Set it to 0 in settings to see everything.

Picking a resolution

When the page offers an image in several sizes, the card shows one token per resolution (“1500w”, “800w”, “src”). The largest is selected by default; click a smaller one to send that variant instead. The token updates to the real width once the preview loads.

The scan cap and “showing N of M”

A scan lists at most the configured scan cap (100 by default, up to 1000). When a page holds more, the header reads “scan: 100 of 350 images” so a truncated scan is never mistaken for the whole page. Raise the cap in settings if you routinely scan bigger pages.

Previews

Thumbnails are loaded straight from wherever the images live, by your browser, exactly as if the page displayed them - with two guards: no referrer is sent (cookie behavior follows your browser’s third-party cookie policy), and they load lazily as you scroll the grid.

If you would rather the chooser contact no outside host at all, turn off the previews checkbox in settings. Cards then show the file name instead of a thumbnail, and picking works the same.

With previews on, a blank tile marked “preview blocked” means the host refused to serve the image outside its own site (hotlink protection). You can still select and send it; monloader may or may not be able to fetch it, and the queue outcome will tell you.