====== Facebook - Save a video ======

In the Firefox browser:

  * Click on Video.
  * Click on Saved Video.
  * Click the three-dot ellipsis menu on a video and select Copy link.
  * Paste that link into a new browser tab. and watch it forward the shortened link (starting with https://fb.watch/) to something that starts with https://www.facebook.com/watch/.
  * In the address bar, change the "www" to "mbasic."
    * That forces the browser to load the mobile version of the page for you.
  * Right-click the video, and select Open link in new tab.
  * Click the Firefox menu, and select "Save Page".
    * This should show the save dialog box with the video as blahblah.mp4.
    * Rename as needed.