When I click on a Google Books search result, I used to read it in Firefox. Now it is impossible, since a recent update. But I can do it in other browsers. The suggested May 2023 solution doesn't work for me. This is the error page I get: "To protect your security, books.google.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window." Opening in a new window doesn't solve the problem.