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What does Firefox do w.r.t. X11 that’s less secure than other browsers?
by minitech 6y ago
What does Firefox do w.r.t. X11 that’s less secure than other browsers?
- est31 6y agohttps://bugzilla.mozilla.org/show_bug.cgi?id=1129492 https://bugzilla.mozilla.org/show_bug.cgi?id=1129492 X11 is an old display protocol predating modern concepts of application sandboxing. It gives gives windows lots of control, like allowing them to move the mouse, enter keystrokes, etc. Basically, anyone who has an X11 handle has the same level of access as the user. In Firefox, the process that's supposed to be sanboxed (the content process) has precisely such a handle.