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Is there a Whitepaper or similar which describes how the automatic updating of Firefox is secured?

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I'm facing an Audit from our Security which is asking how the automatic update process of Mozilla Firefox is secured against Manipulation or malicious Software. The fear is that per example somebody could manipulate the update to load an infected File instead of the original Firefox Update. I've already searched for half a day through the Internet and in the Mozilla wiki but could not find a description of this. Could you please provide me a Whitepaper or similar which describes how Mozilla Firefox ensures that only official and not manipulated Updates can be loaded and installed e.g. does the Client validate the installer hash before execution etc.

Here would be the equivalent Information from Google about Chrome: https://www.google.com/intl/en/chrome/browser/privacy/whitepaper.html https://github.com/google/omaha/blob/master/doc/install-update-overview.png

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All updates come from Mozilla.org and only contain the program in question.

WARNING: There are fake update pages that claim your <whatever> program is out of date, or malware was discovered, or some other problem.

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Hi FredMcD Many thanks for your reply, but i would need a documentation of how it is technically secured that the updates can only be loaded from Mozilla.org. I cannot tell our security "it is working fine" without any technical description it would be useless. Sorry for my bad english i'm not a native english Speaker.

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Sorry, I can't answer that directly, but I can point you in the direction of where you might be able to find it.

Developer documentation is here: https://developer.mozilla.org/en-US/