This code comes from an externally managed library, available at . Bugs should be reported directly upstream and integrated back here. In order to regenerate this file, do the following: * Run: $ git clone git@github.com:mozilla/fathom.git && cd fathom/fathom * Ensure that [this pull request](https://github.com/mozilla/fathom/pull/311) is either landed or been applied to the latest code you want to bundle. * Then run: $ make bundleESModule $ export MOZ_FATHOM="../../mozilla-central/toolkit/modules/third_party/fathom" $ cat $MOZ_FATHOM/fx-header dist/fathom.js > $MOZ_FATHOM/fathom.jsm