Backed out changesets 24c800ff4936 and 5e4e054f3c00 (bug 867143) for mochitest orange.
Backed out 5 changesets (bug 882543) for crashtest orange on a CLOSED TREE.

Backed out changeset b36516aab389 (bug 882543)
Backed out changeset 07550003a24a (bug 882543)
Backed out changeset f4045c40afb4 (bug 882543)
Backed out changeset 1b87e0bd2858 (bug 882543)
Backed out changeset 8d76a3440800 (bug 882543)
Bug 894854: env var disabling censoring of self-hosted script frames (r=till)

It is only aenabled for debug builds.  The env var is: MOZ_SHOW_ALL_JS_FRAMES