If you look at the bookmarklet, you'll see that the JS in it only fetches the URL and appends it to an Algolia search query. Nothing is sent to any other server

If you look at the bookmarklet, you'll see that the JS in it only fetches the URL and appends it to an Algolia search query. Nothing is sent to any other server. It's all done in your browser. Hacker News has exactly the same type of bookmarklet on their 'bookmarklet' link at the bottom of every page[1]. Arguably this method is safer than an Extension. --- [1] https://news.ycombinator.com/bookmarklet.html https://news.ycombinator.com/bookmarklet.html