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== Description and Rationale ==
<b>Chrome Boosters</b> are third-party modules that can be used to provide functionality to Jetpack Features or any XULRunner extension (e.g., Firefox/Thunderbird add-ons).
As their name implies, they are chrome-privileged and can use dependency injection to offer functionality to non-chrome-privileged Jetpacks--—or, if used in a XULRunner extension, they can be used to provide functionality to other chrome-privileged code.
Once we have a substrate of Chrome Boosters available, we'll be able to create "Content Boosters" that consist solely of unprivileged functionality that itself relies on capabilities provided to them via Chrome Boosters.