Yeah I've noticed this too since we introduced the insecure pref. I'm suspecting it's something about about:blank loads but those should get the ⓘ icon technically... I'll look into it.
Bug 1570751 Comment 1 Edit History
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Yeah I've noticed this too since we introduced the insecure indicator. I'm suspecting it's something about about:blank loads but those should get the ⓘ icon technically... I'll look into it.