Firefox PiP supports YouTube subtitles, but it might be overwhelming for the official Firefox developers to individually support all the different and constantly changing websites. Perhaps they could open up the Picture-in-Picture subtitle retrieval ...
I hope that:Even when there is an extremely large number of (unloaded) tabs, all basic tab operations remain smooth and lag-free.A flexible and practical API is provided for extensions so that, as long as the extension implementation is solid, its op...
