how to downloadf youtube videos
This cannot be done natively on the site, and requires an external program (search for it, indicating your platform and other preferences, such as youtube downloader macos open source) or a browser extension (search for it on addons.mozilla.org). There are also websites that seem to do the job but they are usually full of ads and misleading download links so avoid them. Note that some of these programs may have become outdated and not working with the current YouTube, or may only work with some video resolutions. Please take common precautions while installing to avoid malware (recommended to check the download with VirusTotal).