Design/Logic Flaw

Use-after-free vulnerability in the nsIPresShell::GetPresContext function in the PresShell aka presentation shell implementation in Mozilla Firefox before 25.0, Firefox ESR 17.x before 17.0.10 and 24.x before 24.1, Thunderbird before 24.1, Thunderbird ESR 17.x before 17.0.10, and SeaMonkey before...