Prism extensions

Add Prism to Chrome, Edge, or Firefox and it covers ads on any site with nature and quiet. The extensions are the ad cover only. For all your services in one place, and the heads-up when you already have a title, you need Prism for Windows.

Chrome: soonEdge: soonFirefox: soonSafari: planned

Follow the GitHub repo for the first release.

What it does

  • Video ads. On a streaming site, the ad break is covered for as long as the ad runs, with the sound off and a small Intermission card counting down. The ad plays underneath. Nothing is blocked or skipped. Your show picks up the instant it's back.
  • Picture ads. Banners and boxes are covered in place with a nature photo, exactly their size, so the page doesn't jump around.
  • Text ads. Sponsored links and promoted posts get a quiet cover too. Picture and text covers are best effort, so if you spot one Prism missed, report it.
  • Music ads. On a music service, the ad break is muted and covered too. The extension stops there. Playing a soundscape in its place, like rain or a river, is a Prism for Windows feature.
  • Popups. Windows a page tries to open without you asking for them are intercepted, and the Prism button in the corner tells you how many. A click you meant still opens.
  • Escape. Press it to lift every cover and restore the sound at once. Prism holds off for a few seconds so you can always get straight back to your show.

The report button

Prism missed an ad, or covered something that isn't one? Turn on the report button in the extension's menu, then click it on the page. Prism asks you to click the thing you mean, shows you exactly what the report contains, and sends it only when you press Send.

A report is a small, anonymous description: the site, the element's tag, class, and size, the short labels around it, and which rule placed the cover. No account, no cookies, and we don't know who sent it. Reports are checked by hand, and fixes ship in the next extension update.

An optional start page

The extension can also be your new-tab page: a nature photo, the time, and a few quick links. It's off until you turn it on in the extension's menu. It can show the weather for a place you set and a calendar feed you paste in, and it can mark links to news sites with their standing on public source-reliability lists. Each of those is a separate switch, and nothing is ever hidden or blocked by them.

Permissions it asks for

The extension runs on every site so it can cover ads wherever they appear. It reads the page to find ads. It never sends the page anywhere. The Prism privacy policy has the whole story.