I have been able to get Gnash to display Flash videos (albeit slowly), and gappletviewer can run Java applets, but I can't seem to get a browser to run either the Gnash plugin or the java plugin.

I currently believe the best bet for a browser to do these things would be kazehakase, since it is a small, fast gecko (xulrunner) based browser that supposedly can run mozilla plugins. Epiphany-webkit doesn't do plugins, and installing konqueror means installing the whole KDE ball of wax.

Here are some screenshots. The first is the Gnash standalone player running a flash video:



Here is gappletviewer (found in the Debian classpath package) running this java applet, standalone: