Sure it's theoretically generic, but is there a single other plugin available through Mozilla's PFS server as an xpi? They have records for the other standard plugins, but those all use native installers. I can't find a dump of their database, and it looks like there's no way to enumerate it through the API.
Gnash and swfdec are available via Debian and Ubuntu's independent PFS servers as an xpi in their Mozilla forks, but not through Mozilla normally since I don't think their UI will present multiple options for one set of <embed> attributes.
The feature exists solely because Flash doesn't ship in the default installs of Windows (or in OEM installs in NPAPI form), or any of the Linux distros (just OS X).
Mozilla are collaborators: they don't have the moral high ground here.
Gnash and swfdec are available via Debian and Ubuntu's independent PFS servers as an xpi in their Mozilla forks, but not through Mozilla normally since I don't think their UI will present multiple options for one set of <embed> attributes.
The feature exists solely because Flash doesn't ship in the default installs of Windows (or in OEM installs in NPAPI form), or any of the Linux distros (just OS X).
Mozilla are collaborators: they don't have the moral high ground here.