gfontview is a Font Viewer for outline fonts (PostScript Type 1 and
TrueType). It will display all fonts present in the chosen directory
in a list, with a preview of the font in the main window.
Gnome Font Installer is a GTK+ based font installer that allows you to install fonts both locally downloaded and from the repository over the internet . You can preview the fonts from within the application and install them on one click.