This extension to download videos from the Web can be used with Firefox and Chrome.
The main goal of this tool: downloads the video files from the webpage.
I was able to download files from web pages with the TS format file.
As you know, these files with the ts extension can be related to M3U8 files.
An M3U8 file is a playlist file used by various audio and video playback programs.
One short video tutorial can be found at the official youtube channel: