I use picture-in-picture (PIP) a bunch to watch a video while doing something else on my computer. 🧵Here's a quick comparison between PIP players in Chrome, Firefox, and Safari to air out my gripes:

It's also missing all the typically player controls like a progress bar, volume, and fast forward/rewind. It also has it's close action placement on the right side which makes sense for Windows, but macOS places close actions on the left.

Safari is second and almost just as bad as Chrome's but it comes bundled so no extension required.

Firefox is the clear winner. It's bundled with the browser and has all the controls available that you would expect from a video player.