Have a locked down closed system where firefox is used in a couple of instances to display help files some applications use. We've found that users can use the "File" menu to either bring up a "Save-as" or "Open" dialog. From there they can do "Ctrl-N" and bring up a file explorer window and from there start doing naughty things. Run powershell, etc.
I have used GPO to set 'Display Menu Bar" to "Never" and this stop users right clicking and displaying the menu bar. However they can still do "Alt-F" which then opens the menu and they can do the actions mentioned above. Is there any way to prevent them from using "Alt-F"?
I have a .cfg file and Ive added these lines to it: lockPref("ui.key.menuAccessKeyFocuses", false) lockPref("ui.key.menuAccessKey", 0)
but made no difference. Users can still access File menu.
So any method, GPO, css, that will stop this needed.
Thanks