![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://user-media-prod-cdn.itsre-sumo.mozilla.net/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
![video related errors in firefox for android - "no video with supported format and mime type" and "video can't be played because file is corrupt" : r/firefox video related errors in firefox for android - "no video with supported format and mime type" and "video can't be played because file is corrupt" : r/firefox](https://i.imgur.com/cb85i5i.jpg)
video related errors in firefox for android - "no video with supported format and mime type" and "video can't be played because file is corrupt" : r/firefox
![Cannot play MP4 file in Allure site: Your browser does not support video tag · Issue #1676 · allure-framework/allure2 · GitHub Cannot play MP4 file in Allure site: Your browser does not support video tag · Issue #1676 · allure-framework/allure2 · GitHub](https://user-images.githubusercontent.com/47775582/171135950-b36f4f5f-341f-4fde-87da-b995ad1912cf.png)
Cannot play MP4 file in Allure site: Your browser does not support video tag · Issue #1676 · allure-framework/allure2 · GitHub
![You Tube message: browser does not currently recognise any of the video formats | Firefox Support Forum | Mozilla Support You Tube message: browser does not currently recognise any of the video formats | Firefox Support Forum | Mozilla Support](https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2016-08-05-00-56-55-a8398a.png)