The Adobe SVG Viewer is a viewer for Scalable Vector Graphics like charts and graphics and, as I found out, is used by Oracle in web-applications. It’s downloadable at Adobe downloads.
However, the plugin only works for Internet Explorer.
With some minor tweaks it’s possible to make it available under Firefox/Mozilla. Just copy two files:
C:\Program Files\Common Files\AdobeSVG Viewer 3.0\Plugins\NPSVG3.dll and
C:\Program File\sCommon Files\AdobeSVG Viewer 3.0\Plugins\NPSVG3.zip in the plugins folder of your Firefox/Mozilla plugins folder and restart your browser. Firefox still complains that plugins are missing, but the graphs are displayed.