https://slbkbs.org/jsgif/

That doesn't work when I go through r/memes. Like it didn't see the GIF in this post: https://www.reddit.com/r/memes/comments/159c7w9/time_to_die_ig/, on the page itself nor in the feed.

On Reddit, that is a video (maybe it was a GIF when it was posted but it was converted for display).

You can right-click the video and choose Show Controls.

I am not aware of a setting to override a website's choice as to whether to show controls on a video; maybe there is an add-on for that.

That worked, though I still want controls for actual GIFs like this one: https://www.google.com/search?client=firefox-b-1-d&q=web+gif+example#vhid=YGtfdlLW95ObWM&vssid=l. JSGif doesn't seem to show playback controls like what I'd want.

You can't control a site animations per say to like a video player can or audio player. That is set by the site and they control what feature can be run on it or control it.

That worked, though I still want controls for actual GIFs like this one:

JSGif works if you open it stand-alone in a tab on the host site (https://www.creatopy.com/blog/wp-content/uploads/2018/05/Automation.gif). But is that the best solution? Probably not. Have you searched for an add-on?

jsgif lets you pause, play backwards, frame step forward/back and jump to a specific frame number when paused but there is no progress bar or speed control like a video.

jsgif lets you pause, play backwards, frame step forward/back and jump to a specific frame number when paused but there is no progress bar or speed control like a video.

That's what I want, a bar to indicate progress and can scrub.