Right, this was my initial idea.
But maybe using mozjs-dbus is much easier, I will try it later today.
Thanks for the link.
firefox extension: use XPCOM instead of communicating via files
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Due to a missing pyxpcom package in ubuntu karmic the firefox extension was
hacked by files in the dbus communication process. this is VERY inefficient. We
should use XPCOM instead.
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