Searching the Chrome Web Store for "Twitter video downloader" offers several options.
Use media players like VLC Media Player (plays anything), QuickTime (Mac), or Windows Media Player. Twitter (10) mp4
Use the native photo gallery/video app on your iOS or Android device. 3. How to Convert or Edit (If Needed) If the file is not playing properly or you need to edit it: Searching the Chrome Web Store for "Twitter video
Tools like CloudConvert or Ezgif can convert .mp4 to other formats (e.g., GIF, MOV). Twitter (10) mp4