title_body: Can't download ebook from Amazon to my PC Just making this question in case someone encounter the same problem, I will answer it.
  So I just bought an ebook for my Kindle in amazon, because some circumstances I have not WIFI available in my house as many other times, therefore I want to dowload it to my PC and transfer it to my Kindle via USB cable, as many other times.
  I go to the page where you handle all your ebooks (sorry but I'm not a native english speaker, so I don't know the exact names in english version of amazon web... if you know them, you are officially invited to edit the question :), locate my new ebook, hit the &quot;...&quot; button, select the option to download the ebook and transfer ir via USB and select my kindle in the dropdown menu.
  And nothing happens.
  Seconds later, suddenly a message appear and dissappear in screen, saying something like &quot;Download your book from My multimedia library&quot; (again, not english native speaker), but the book doesn't get downloaded and I can't for my life find the above mentioned library.
  So, I don't have the book, and it seems that the library doesn't exist.
upvoted_answer: After several hours of frustration and searching in internet (seriously, after like 3 hours), suddenly I remember the console. Hit F12 to open Chrome console and what a surprise: an error:
  Mixed Content: The site at 'https://www.amazon.es/' was loaded over a secure connection, but the file
  at '**HERE COMES THE DOWNLOAD URL**' was redirected through an insecure connection. 
  This file should be served over HTTPS. This download has been blocked. See 
  https://blog.chromium.org/2020/02/protecting-users-from-insecure.html for more details.
  
  I tried to change chrome settings to no avail, so I just copied the download URL and pasted it in a new tab. It downloaded the book without a problem.
  I don't really understand the problem, but yes, just copy/paste the URL and download your ebook.