>>2322722No other suggestion you've got will work, trust me, they don't work for me either. But... I do have my own method that literally never fails. Grab Any Media add-on with Firefox. When the video is up and loaded, click the little blue arrow on your taskbar, the add-on's symbol. That will show a list, it's a list of all the videos displayed on the page. Click the video on the list you want, then click open on the drop down. A new tab will open of the video completely by itself, and from there you can just click "save video as" to get the entire thing in perfect quality. No dropped download, no failed download, no issues at all. If the video isn't showing on the list, which sometimes happens, there's a thing to do. Right click the video, and click the thing that says hls>http. I have no idea what that actually does, but THAT makes the add-on able to see the full quality version of the video to click.
Preview image of it. The low size is because Nico is currently in LQ mode. If it wasn't, that file would be much higher since it'd be the 1080p version.