DOMApplicationRegistry.startDownload() passes a literal object that does not specify an installOrigin property as the argument to the aApp parameter of the DOMApplicationRegistry.downloadPackage() function. <https://github.com/mozilla/mozilla-central/blob/54d68d7b8433c9b34a025d921e79e7a9830181e5/dom/apps/src/Webapps.jsm#L987-L991> But downloadPackage() checks that aApp.installOrigin is in dom.mozApps.signed_apps_installable_from and throws INSTALL_FROM_DENIED if it isn't. <https://github.com/mozilla/mozilla-central/blob/54d68d7b8433c9b34a025d921e79e7a9830181e5/dom/apps/src/Webapps.jsm#L2110-L2131> So preloaded packaged stub app updates fail with INSTALL_FROM_DENIED. And presumably non-stub updates will also fail, as might non-preloaded updates (although I haven't tested these). Note that I've only tested with B2G Desktop so far. But the codepath in question does not appear to be desktop-specific, so this seems unlikely to be a desktop-specific bug.

s/as the argument/in the argument/

Comment on attachment 705074 [details] [diff] [review] patch v1: defines installOrigin Review of attachment 705074 [details] [diff] [review]: ----------------------------------------------------------------- Thanks Myk!

Comment on attachment 705074 [details] [diff] [review] patch v1: defines installOrigin https://hg.mozilla.org/integration/mozilla-inbound/rev/b659cd43cc69

You probably are going to want ask for approval on this patch...

Comment on attachment 705074 [details] [diff] [review] patch v1: defines installOrigin [Approval Request Comment] Bug caused by (feature/regressing bug #): unclear User impact if declined: At least some (and possibly all) external (i.e. third-party) packaged app updates will fail to install, including preloaded apps and those installed by the user from Marketplace. Testing completed: I tested with a preloaded packaged app stub on the latest nightly build of B2G Desktop. Risk to taking this patch (and alternatives if risky): The fix is obvious and seems low-risk. There is no alternative. String or UUID changes made by this patch: None.

Will verify by testing an app update with the stub.

FWIW, this bug might have broken all packaged app updates, so it's worth checking that an app installed from Marketplace can be updated to a new version of the app now that the fix has been applied.

Landed on mozilla-b2g18/gaia master prior to the 1/25 branching to mozilla-b2g18_v1_0_0/v1.0.0, updating status-b2g-v1.0.0 to fixed.

Verified - app updates are working with packaged apps & I was successfully able to complete an update with the packaged app stub.