Set network.cookie.cookieBehavior=5 as default value. It might related to bug 1634021, both use `BroadcastChannel`. https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=299274308&repo=try&lineNumber=10205
Bug 1634312 Comment 0 Edit History
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Set network.cookie.cookieBehavior=5 as default value. ~~It might related to bug 1634021, both use `BroadcastChannel`.~~ https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=299274308&repo=try&lineNumber=10205