Github user fdummert commented on the pull request:
https://github.com/apache/cordova-firefoxos/pull/7#issuecomment-44382201
Thank you for adding the basic build functionality for Firefox OS.
Unfortunately the adm-zip module used to generate the package.zip is
buggy and often creates corrupt zip files (see
https://github.com/cthackers/adm-zip/issues/71).
Could you please consider using a different zip implementation, e.g. jszip?
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