Replaying a video on YouTube makes it buffer all over again instead of it playing instantly like Chrome does. Is there any fix for this?
Re-buffering happens if you replay a video after it buffers completely till the end and if you click on the timeline far enough back during buffering.
I've looked through many threads but didn't find any fix/workaround for this. I saw some users saying changing values for media.cache_readahead_limit and media.cache_resume_threshold to 99999 fixed it but that didn't help and actually caused Firefox to stop buffering midway through videos.
You're supposed to let it play/buffer all the way till the end. Then press replay or when you're like 50-60% through the video, click on the timeline far enough back i.e < 1 min.
For example, when this video https://www.youtube.com/watch?v=2tdiKTSdE9Y finishes playing for me, and I press replay, YouTube starts rebuffering the video from scratch. In Chrome's case, the buffer is still there.
By anychance, do you have free ram? Sometimes this happen when the ram is not available... so yeah.. You should check it first. Also check about:memory I guess