Safari View Selection Source Plugin enables such useful function as viewing selection source, which gave Firefox a great advantage over Safari. But that is over.

Drag and drop slSafariVSSExtension.plugin to Contextual Menu Items  folder in the opened disk image. If the plugin does not work at once you will probably need to restart Safari.

Useful tips:
· Press Enter in the window with source selection to toggle text wrapping.
· Press Esc in the window with source selection to close it.

Requirements:

· Safari