Downloading public Facebook videos is usually as simple as copying a link, but —those shared in closed groups or with specific "Friends only" settings—require a bit more effort. Because Facebook’s security protocols restrict direct access to these files, you need specialized methods to "fetch" the video's data.
In the address bar, find the www or m at the beginning of the URL and change it to mbasic . For example: download private facebook videos mobile
Paste the link into a mobile browser like Chrome or Safari. Downloading public Facebook videos is usually as simple