Mp4 Playback Choppy In Firefox But Not In Chrome

I created an MP4 video a while ago and tested it in both browsers. In Firefox, there's often an A/V sync issue and the video sticks a lot, so badly that it looks more like a series of still frames than a video. In Chrome, however, there's absolutely no problem with it, and it plays through perfectly, both just once and on a continuous loop. So what's the problem with Firefox?

 

So is the file hosted on a website?
If it is, you can try turning off Hardware Acceleration in Firefox in Tools> Options > Advanced > General
Generally, make sure Adobe Flash is up to date and you can turn off HW in its settings too.
The above may work and it may not.

 

Yep. Dropbox. But I also get the same issue just playing it from my hard drive.

Done.

Done.

Unfortunately, no luck.

 

If I "web optimize" the file using Handbrake, it plays much better in Firefox, although not perfectly, still a bit jerky and sticky. But I don't want to have to "web optimize" it. If it plays perfectly in Chrome, it should play perfectly in Firefox.

 

If the file is not private or too big, you can upload it.

 

Thanks but I'd rather not. I've been doing a lot of experiments. It seems resolution's a factor. The larger the resolution, the more difficulty Firefox has with handling it. But if the resolution's really small, like 720xsomething, Firefox plays it very smoothly. I've noticed something else interesting too. A big problem with Chrome. It seems every video that's 1280xsomething or above plays with a greenish tint so that no matter how red in the face a person is when I play the video with a standard media player, he/she always looks kind of nauseated in Chrome. There's also a slight stickiness to the playback. Opera, on the other hand, can play a 1280xsomething video perfectly, with no greenish tint and no stickiness. It does show stickiness though when it comes to 1920xsomething videos. But who uses Opera anyway. About 5% of people, it seems. Big deal. What I am finding annoying at the moment though is that I created a test html page with the following code

<video width="1280" height="720" controls autoplay loop>
<source src="C:\Users\Jesse\Desktop\test.mp4">
</video>

and it doesn't work in Firefox. Works fine in Chrome and Opera but Firefox gives me this message,

"No video with supported format and MIME type found."

 

ANOTHER bloody problem! I've just tried opening a video in Opera only to be told, "File not found. It may have been moved or deleted." Got the same message in Chrome. The same video opens fine in Firefox though.

 

If the video is hosted on a website why don't you link it here then we can test it ourselves.
I'm not sure anyone can comment unless they can replicate the issue.
Otherwise just use whatever web browser works.

 

I'd rather not share the actual video. Would the MediaInfo help?

 

I doubt it. As Plodr said in your other thread on browser problems, you just need to use whatever browser works. That's why it is a good idea to have them. Apart from Edge and IE inbuilt to my Win 10, I have Fx, Opera and Chrome, and that way I'm never really facing a rendering problem.

 

I'm testing out other browsers now. I've tried Maxthon which is perfect except it can't handle APNGs, and now I'm trying Pale Moon which can handle APNGs but sticks a little on MP4s.

 

It turns out I'll be sticking with Firefox after all. It turns out all my problems with it were caused by the VLC Web Plugin. I was gonna test the 64-bit version of the VLC Web Plugin with Waterfox so I thought I'd uninstall the 32-bit version from Firefox because I don't really need it. As soon as I did, Firefox's native video playback SHOT up. NO freezing, NO stickiness, NO pausing. PERFECT. It now loads animated gifs much faster too. I've spent the last several months wondering why Firefox had suddenly declined in video and animation playback when I hadn't changed anything about the way I encode videos or create gifs, and all this time it was that bloody plugin was slowing everything down. Well good riddance to it.

 

I'm getting choppy playback in Firefox again. I didn't reinstall the VLC Web Plugin but I did download a new version of ffmpeg because I was told that I could make really high quality animated gifs with ffmpeg. Since I downloaded this new version, mp4s are back to playing choppily in Firefox again. I deleted the folder with the new ffmpeg version in it but that hasn't helped. Can anyone tell me what to do?

 

It was hardware acceleration. Not the VLC Web Plugin, not ffmpeg, just hardware acceleration. I need it on always. Otherwise videos play jerkily, in slow-mo, and freeze a lot.