It's slightly different, but I can recommend https://www.fivefilters.org/push-to-kindle/ https://www.fivefilters.org/push-to-kindle/ Works perfectly. I use it

It's slightly different, but I can recommend https://www.fivefilters.org/push-to-kindle/ https://www.fivefilters.org/push-to-kindle/ Works perfectly. I use it as a (n effectively) free browser plugin, and also paid for the iPhone app, because it's super-useful to have available there, and also to support the creator - this was something I'd wanted to write for myself and was very glad to not have to.