This is a significant step. In a move that can prove very interesting in long term, latest Firefox browser comes with iTunes Application Detector plugin.

We can assume it will do wonderful things. Interacting with iTunes, on-click song purchase from firefox.

What else they might do?

Update: Thanks Asa for correction. This plugin is not part of Firefox install. This was updated by mysterious Apple Updater. Windows version of Apple Updater is a study in itself.

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