Normally it takes around 1 second to extract the downloading url for videos like Youtube, for some videos it make take longer, but no more than 5 seconds. If the extracting process takes more than 5 seconds, you better check the settings of your browser, sometimes it is due to the extension like "uBlock Origin". The speed will be greatly enhanced after disabling such extensions. Otherwise, just clear the cookies of the browser, the problem will be solved most of the times.

If you want to download as videos itself, you can use other free tools like Free Youtube Download to download all videos with a single click. Please be careful while installing this tool as it optionally installs a browser toolbar and modifies search preferences. So please make sure you read and uncheck the optional checkboxes while installing to avoid surprises in your browser. 
The last thing that I'll add is that the build quality of the software is excellent... any if you that have purchased Abbas' products in the past then you know that the quality of his software, and his customer support, are exceptional. I can’t imagine uploading all my videos all over again since I have over 500 videos in one of my accounts. I really needed this software!!
Totally free, 5KPlayer from DearMob is a media-playing utility that is a lot more than a downloader—but it's got a heck of a downloader integrated. Promising no viruses, ads, or plug-in requirements is a good start. It is, sadly, one of the few I tested that asks for a registration of your name and email—you have to do that to get the full download function across 300+ sites. You may still use it if you don't register; I didn't and was able to download 4K vids from YouTube.
Step 1:   Free download YouTube video downloader on Mac iMac Pro, Macbook Air/Pro or Mac Mini and install it, copy the URL of the video page. find a video you'd like to save offline, then paste the URL and click "analyze" to load the YouTube video details. Or click "paste & analyze" button to automatically detect the YouTube video opened in browse.
If you mis-tag your videos for the wrong set of audience, the FTC could charge you with compliance issues, and later, even takedown your channel. Other disciplinary actions include the implementation of fines, which could go up to $42,000 for each violation. Even though the help-centre of YouTube claims that they will look into the financial status of the content creator before the fines are decided, it still could add up to a considerable amount. Many YouTube animators are currently in a dilemma, as their work is not directed at children, but cannot be tagged as “for adults” either.
MacX YouTube Downloader helps you out of the dilemma, letting you download YouTube videos (HD/4K) on Mac free, thus you can save and watch your favorite videos offline, even if you are thwarted by the lack of Wi-Fi, restrictive data plan or sudden video disappear from YouTube. The free YouTube video downloader for Mac has been highly awarded by big tech giants like CNET, receiving 3.5 stars. It stands out from the rest largely due to it's free, safe but powerful in downloading any kinds of online videos like 360 degree VR videos, 4K/8K UHD, 3D videos, HD videos, Blu ray movies, TV shows, music, etc in whateverformat (MP4, FLV, WebM, 3GP, etc.). Its user-friendly interface will guide you to grab videos from YouTube on Mac without consulting any tutorials or user guide, no matter you are an experienced user or a newbie.
×