Bug 989370: Update Marionette Stale Element Reference exception to give a meaningful explanation; r=jgriffin
Bug 987387 - Part 2: Add a test to ensure that sendBeacon respects private browsing by checking to see if a private cookie is set when calling sendBeacon in private browsing mode; r=jdm

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extra : rebase_source : 421d0faab1db58e0d31b529e1acf70b13f9d7faf
Bug 985230 - mStatus is not correct in HttpChannelChild::OnStartRequest r=sworkman
bug 987295 - mozilla::pkix: fix decoding OCSP response extensions r=cviecco
bug 987295 - mozilla::pkix: test ocsp extension decoding r=cviecco
bug 989516 - mozilla::pkix: temporarily allow improper basicConstraint:cA encodings r=cviecco
bug 990248 - enable mozilla::pkix by default in Firefox Nightly r=briansmith r=cviecco
Backed out changeset 352a2109c6e6 (bug 987387) for m-oth orange
Merge inbound to m-c