Thank for your this great add-on. I could not download a video file from some website. It kept giving HTTP403 Forbidden error for some reason. Logged in or logged out, I could not download it with my usual software. Almost all other addons could only detect the chunks. Stream detectors could detect the main m3u8 file, but site did not allow downloading.

This worked like a magic. May or may not have issues if you want to download multiple files at once.

Working for now. I'm testing to download a streaming video. If you see this comment after 1-Jun-2020, it means this extension actually work.