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<!-- contributed by Irakli Gozalishvili [gozala@mozilla.com] -->

The `content` module re-exports three objects from
three other modules: [`Loader`](modules/sdk/content/loader.html),
[`Worker`](modules/sdk/content/worker.html), and
[`Symbiont`](modules/sdk/content/symbiont.html).

These objects are used in the internal implementations of SDK modules which use
[content scripts to interact with web content](dev-guide/guides/content-scripts/index.html),
such as the [`panel`](modules/sdk/panel.html) or [`page-mod`](modules/sdk/page-mod.html)
modules.

[Loader]:
[Worker]:modules/sdk/content/worker.html
[Symbiont]:modules/sdk/content/symbiont.html