If the video is a direct file (like an MP4) rather than a segmented stream, you can often find it using Firefox's built-in tools. Open the page with the video in Firefox.
If it's an MP4, you can right-click and save. If it's an M3u8, you may need a tool like to "stream" that link into a saved file. Method 4: Third-Party Online Downloaders download jw player videos firefox
This is the gold standard for Firefox. It detects the streaming manifest and allows you to download the video in various qualities. If the video is a direct file (like
Does the video play as a or is it a live stream ? Are you getting an error message when trying to download? download jw player videos firefox