https://www.facebook.com/settings/?tab=videos
Edit: Apparently some people don't see that setting. These are the settings I see: http://i.imgur.com/XexAp8k.png
(Aside: Anyone recommend a better image host than imgur?)
Is it really about "mind control"?
(I wouldn't downvote it (and can't anyway), but that might be why others did.)
"Non-HD" photos and videos on Facebook are compressed to hell and back... Must be JPEG at something like quality 60%. There's been recommendations to just upload at a high resolution, which works fairly well when viewed on HiDPI displays as the resolution hides the artifacts, but still terrible otherwise. IIRC they had a trial with WebP but abandoned it? It's too bad we don't have good low bandwidth options there, because of course I can see their side of it too. Should honestly have been a problem solved eons ago by now.
For me, I can only change the default quality, there's nothing to configure autoplay behaviour.
If you use github or gitlab sites for a personal website, you could probably use your own repo as a miscellaneous image host-- as long as it's within the bounds of their TOS.
Not anymore. They started clean and bloat free and now have a ton of junk on their desktop pages, push you to the mobile app with banners and overlays on their mobile pages, and forcibly redirect (esp mobile) direct-links to the full-page HTML versions [1].
This behavior is believed to be one of the reasons Reddit (which is basically the reason Imgur exists) is now switching to self-hosting images.
[1]: https://www.reddit.com/r/changelog/comments/4kuk2j/reddit_ch...
Video Default Quality
Default
You can still change the quality of a video you are watching by clicking the HD icon in the video player.
Auto-Play Videos
Default
These settings only apply when you use the Facebook website. [Follow this guide](https://www.facebook.com/help/633446180035470) to change auto-play videos in your Facebook app.