Firefox WebExtension importing Services

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The MDN top level page for addons used to give an overview over the different extension types (since FF57 only webextensions are supported).

Components.utils.import

this is for restartless/XUL (legacy) extensions.

const { Cu } = require(“chrome”);

this is for SDK extensions.

Neither will work in webextensions.

Unlike the other extension types webextensions are restrictive, they do not provide access to the low-level APIs that you can find all over the wiki.

So stick to pages that are under the webextensions hierarchy or standard web APIs when you’re looking for documentation related to this extension type.

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