You can now write and read open reviews on any website, with our new browser extension for Firefox and Chrome or other Chromium browsers. No integration by the site needed.

Open a place on OpenStreetMap or Google Maps, or a book page with an ISBN, and the extension finds the subject for you. On other pages you review the website itself.

Firefox: addons.mozilla.org/firefox/addon/mangrove-reviews/
Chrome: chromewebstore.google.com/detail/hkanidbmblekgfbgmgjkchjekgilbpdp

Built from our widget sources: open-reviews.net/technology/widget/#browser-extension