HowTo install ttf-font in Ubuntu

Going to font:/// in Nautilus is obsolte.

You can drag your .ttf-file into .fonts in your home-directory to install that font only for this username:

copy myfont.ttf ~/.fonts

or you can drag it to /usr/share/fonts/truetype to install it for all users:

sudo cp myfont.ttf /usr/share/fonts/truetype

Note: If you have Openoffice opened, it may crash after you installed your font the second way.

You may need to run fc-cache to rebuild the font cache:

fc-cache