Instant Gallery Viewer for Booth ("the extension") is an independent, third-party browser extension that speeds up and adds a viewer for the image gallery on booth.pm product (item) pages. Not affiliated with, endorsed by, or sponsored by pixiv Inc. or BOOTH.

SUMMARY
The extension does not collect, store, transmit, sell, or share any personal data. It has no analytics, no tracking, no remote servers of its own, and no accounts. All of its work happens locally in your browser.

WHAT DATA THE EXTENSION HANDLES
• Your extension settings (the popup toggles). These are stored on your device using the browser's storage.sync API. If you have Firefox Sync enabled with a Mozilla account, Firefox (not this extension) may sync these few preference values across your own signed-in Firefox profiles; otherwise they stay local to this device. They are never sent to the developer or any third party.
• booth.pm page content. On a booth.pm item page, the extension reads the page's gallery images and requests that same item's public image list from booth.pm's own origin to pre-load (warm) the images so they appear faster. These requests go to booth.pm and its image CDN (booth.pximg.net) — the same servers the page itself uses. When an item includes a promotion video, the extension also opens a connection (preconnect / DNS-prefetch) to that video's host and, when you play the video, loads its poster and player from that host — the same third-party players booth.pm itself embeds (YouTube, Vimeo, or niconico). No data is sent to these hosts beyond what the booth.pm page requests on its own.

COOKIES
When the extension requests an item's image list from booth.pm, the browser includes your existing booth.pm cookies (standard for a request to a site you're logged into), solely so age- or account-restricted items return the correct images for you. These cookies are sent only to booth.pm. The extension never reads, stores, copies, or transmits your cookies.

DATA SHARING AND SELLING
The extension does not sell or share your data with anyone and sends no data to the developer or any analytics/tracking service — it runs no servers of its own.

PERMISSIONS
• storage: to save your extension settings via the browser's storage.sync API.
• Access to booth.pm (and its subdomains): so the extension can run on booth.pm item pages and pre-load that page's images from booth.pm itself.

CONTACT
Questions about this policy: cndrcndrcndr@proton.me