Great extension and works for some downloads other utilities can't do. Note that this works for m3u8 streams that do not have DRM protection and some websites use a different streaming protocol, or have implemented DRM on their streams. The extension appears to be a bit unfinished and it does take a bit of understanding to use it properly.

-It needs a button to let you clear previous finds. I had a list of 31 at one stage and I kept on having to scroll to the bottom. Somehow the stream information also got corrupted at one point I found I had 5 files with different stream names but they were all the same content. The only way to currently clear the list is to disable the extension and enable it again. This happened on a site where you could get access to multiple videos without having to go to a different tab.

-The results are presented as m3u8 filenames which is often not very informative. There's a preview button but it's a cumbersome way to have to tell if you are selecting the correct file to download.

-If you see an error message in a preview it may be that the file has DRM protection. I don't know if there would be a way for it to detect DRM and let you know that's the reason.

-Also nice would be to have an icon indicating what kind of stream each result is. I saw one site where there was audio, video, and both. Sure, you can tell from looking at the previews but again it's a bit cumbersome.

-When you select a stream to download it will open a new tab. The bottom of the tab has a FAQ list which mentions some features that apparently the Firefox version of this extension does not have.