[Waifu]

That should give you a brief idea on why saving your passwords in a web browser is dangerous.

I certainly agree.

Those who do save, If the browser supports It, set a master password.

your friends in real life can also just simply navigate to your computer and look at your passwords!

If they perform such actions, they're not your friends.

Thank you for the master password mention! And I do agree that friends who perform such actions are not your friends. But we never know who your "real friend" is.