In https://github.com/whatwg/html/issues/2328 we discussed new semantics for the select event on input/textarea in reaction to select() and various other selection-manipulating APIs. What we ended up with was only firing the select event when these change the selection. That was merged in https://github.com/whatwg/html/pull/2352. Web platform tests are available at https://github.com/w3c/web-platform-tests/pull/4799 This will apparently allow Gecko to work correctly on the Ikea sign-up page; see https://bugs.chromium.org/p/chromium/issues/detail?id=637860