Copy and paste from website and preserve font (Firefox)

Mr Lucky

Well-known member
I've notice with Firefox (v57.0 onmac) when I copy and paste from a website (into a text editor or word processer), it always pastes Times 12px, whatever font and size the website was displaying.

In Safari or Chome it pastes the same font and size foprmatting etc

I notice in Firefox preferences there is a setting for default font, but this makes no difference.

Anyone know if this is a bug in Firefox, or is there some other option somewhere?