send-to-kindle

This is disappointing, and upsetting, coming from such a big website, that they have such major functionality issues with such a simple plugin. It's also terribly odd that their plugin works well with Google Chrome, who they famously don't get along with, but is no longer supported on firefox. The 'Send-to-Kindle' function is a very powerful and necessary tool for my kindle paperwhite, and I would have liked to use it for my own website. Everything works well enough, besides a few minor bugs, until you click send, and the loading will go on in perpetuity never actually sending. Literally everything works fine, until the actual email process. It's embarrassing. Please fix this. I know you can afford to.