How to download (copy) icons from the site you like?

Question

Icons

Hello. How to download (copy) vector icons from the site you like?
Now I'm making a site layout in Ps, so the vector is not really needed, but when laying out the site, the icons will be needed in the vector. Now I do the following: screen of the desired area in FireShot 》further editing in Paint or Ps 》pasting in the right place in Ps.
I tried to translate into a vector on the advice from the network, but nothing comes out. The screen itself is already "going" in the raster.
How can you solve the problem of "ladder"?

Answer 1

If they are in .svg on the site, then you can save them with the right button, and they will be downloaded as a vector, and even your vector will become a raster as a printscreen. But if they are initially in the raster, then nothing, only rendering.

Answer 2

Draw the icons in vector. Or buy them.