How to download music from youtube and from any other sites from a web browser?

Question

Browsers

What programs have the ability to save the audio stream to a file? In my opinion, nothing prevents you from saving music that has already been loaded into the cache and is being played (if not all of it has loaded, then automatically download and save everything (if it doesn’t work automatically, then play it manually and save everything as a file)) from any site

Answer 1

Plugin. Download helper
Safefromnet
youtube-dl
etc

Answer 2

Lots of such services. Enough to google

Answer 3

Previously (in older versions of browsers) there was a cacheviewer add-on or something similar / consonant,
now I tried to search the firefox add-on store for the keywords 'cache' 'viewer' - there is nothing similar :(
Using this add-on, you could snatch everything from the cache you want))
Isn't it easier to download what you need than to "pick" the cache?
although I still have
The Stream Detector and Video DownloadHelper add-ons installed (but disabled) in my browser,
so, just in case of a fire, I don’t even remember when I used them last time))

Answer 4

By installing an addon, of course. And usually you keep two or three, because one works in one place, the other in another. Specifically, on a pipe, add-ons usually merge the video sequence into one file, the audio sequence into another, then you simply combine them.