![Firefox 49 error "This browser does not support video playback" playing mp4 videos in Twitter in Win 8.1 with Flash Player 23.0.0.162 | Firefox Support Forum | Mozilla Support Firefox 49 error "This browser does not support video playback" playing mp4 videos in Twitter in Win 8.1 with Flash Player 23.0.0.162 | Firefox Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2016-09-29-13-37-52-ec2966.png)
Firefox 49 error "This browser does not support video playback" playing mp4 videos in Twitter in Win 8.1 with Flash Player 23.0.0.162 | Firefox Support Forum | Mozilla Support
![html - Video uploaded by certain android does not play on Google Chrome browser with HTML5 - Stack Overflow html - Video uploaded by certain android does not play on Google Chrome browser with HTML5 - Stack Overflow](https://i.stack.imgur.com/fZRpz.jpg)
html - Video uploaded by certain android does not play on Google Chrome browser with HTML5 - Stack Overflow
![VID_20220216_221856.mp4 can't be uploaded? "Your browser does not support the video codec used for this video. Please trying a different video codec." It does! Why is reddit being like this? Expect me VID_20220216_221856.mp4 can't be uploaded? "Your browser does not support the video codec used for this video. Please trying a different video codec." It does! Why is reddit being like this? Expect me](https://preview.redd.it/vid-20220216-221856-mp4-cant-be-uploaded-your-browser-does-v0-nxhfu5r7cai81.png?width=640&crop=smart&auto=webp&s=457616b59f18d5d9b7a38579cc273cc9e38c4f90)