I've looked for a regression to this issue. It seems it's not a regression since I can reproduce it on Firefox form 2014-02-20 and on builds from 2013 I can't access outlook.com.
Bug 1539431 Comment 1 Edit History
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I've looked for a regression to this issue. It seems it's not a regression since I can reproduce it on Firefox from 2014-02-20 and on builds from 2013 I can't access outlook.com.