As per my reply about the other Facebook video.
I don't use Facebook, or social media in general, but Facebook data, unless private, can be viewed if you know how.
Right click on the link (URL) and, if you have the choice which is dependant on your browser, choose 'Open In New Private Window'. Other browser may have a differ option/wording if they support private windows. That or manually copy the URL and then just open a 'Private Window' and paste the URL in, and hit return.
In the new 'Private Window', accept all cookies, and then just click the circled 'X' instead of logging in. This was using Firefox. This will work for a few images/videos/etc., but after that the process has to be repeated, as your limited Facebook viewing access has ended.
