Similar to what we do within Bug 1449872, where we enforce that all content privileged about: pages ship with a CSP, we can update AssertContentPrivilegedAboutPageHasCSP() within CSP to also assert on system privileged about pages. We still have to wait till Bug 965637 has landed before we can start doing that though.
Priority: -- → P3
Assignee: nobody → ckerschb
Summary: [meta] Apply Meta CSP to more System Privileged about: pages[ → [meta] Apply Meta CSP to more System Privileged about: pages
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