Pandora requires Flash. TenFourFox has not supported plugins,
including Flash, since version 6. By default the browser disables
them since then. If you used the undocumented internal setting to
turn plugins back on, you put the browser into an unsupported
In 19, Mozilla removed the old QuickDraw and Carbon event model
code that plugins depended on, so enabling that setting no longer
If you must use Flash or Flash-based sites like Pandora, you
will need to use another browser.