MAC OS no installation or updating of the browser + access to websites such as facebook youtube netflix etc. Including software update possible?

Is
6

My problem is about a Macbook which a well-known friend of mine got for Christmas. The basic problem is that you can't even open YouTube and you are asked for a browser update or for a new installation, but when you click on some of the grid an error message appears that a secure connection and co. Can't be established.

I've already tried externally via USB stick to load installation files for Chrome Firefox etc for the Mac when opening, but where you actually expect an upcoming installation, nothing happens except opening a text file.

Software update can also not be loaded because to my question now, does anyone have a plan like me on this crutch because something can run, you can't even open anything.

ni

Which model? (Year and Pro / Air / Normal Macbook)

Which macOS is on it?

Is

Where can you see that lg

ni
Is

MacBook (13 ", Mid 2009)

Model identification: MacBook5,2

Part Numbers: MC240xx / A

Latest compatible operating system: OS X El Capitan 10.11.6

Technical data: https://support.apple.com/...cale=de_DE either it's the model from the beginning of 2009 or in the middle of the notebook I can't steal anything that points to the model

ni

Well, the Macbook is 11 years old and 3 macOS versions behind.
There's actually junk. It is of course possible that there's no current version of Chrome / Firefox on which YouTube is running.
There are no more updates. EL Capitan is already the highest.

One try:
https://www.reddit.com/...itan_help/

Is

I'll try the page I really didn't know that mac, unlike windows, doesn't work anymore when you're old: / Well, thanks for your quick answer. LG