If it's possible, you should give your built-in Media Player in Firefox because I use it more often than my VLC media player installed (the UI when you're trying to play a media file via Firefox) a revamp!
For MIME/Audio: You should give a shuffle, playlist, Visualization, etc. (and If playing an audio, you should add an option to:
* auto-add all audio files in the same directory/folder as the one that's playing to a playlist, or
* Play the single file only.
For MIME/Video: You should add support in Firefox to play .m3u8 files natively (in Desktop) (I needed an extension just to play it) (because If I'm not wrong, Firefox Mobile is only the one who supports it)
Please provide built-in media player with fulscreen/Zoom option, player controls for watching videos posted in websites.
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Firefox Mobile (tested in Android) can't play local files (mp3 files or whatever). It's a shame, because this feature is on chrome. So to play music I have to either download some sketchy music player or use chrome.
(Note: similar ideas have been merged into this thread)
On desktop now, firefox already has a song playback that is better than that of Chrome/Edge. So it would make sense to work this out on mobile too, also for images 🙂
I know it's not a priority, but I could work on it if someone guides me on how to do it.
Its strange that this is not a priority. Probably all other browsers have a better UI.
For example, Edge. it has ability to seek with double tap and pause when taping in the center of the screen. On the top right there is a button which zooms into a video a bit so it will take more screen space. From 3 dot menu it has options to speed up the video or download it
Another example is UC Browser. It even has a tutorial of how to use it. Its options are a lot more than what Edge or Chrome has. It even has a back button!
The video was from this page: https://www.w3schools.com/html/html5_video.asp