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I want the dialog that asks if you want to suppress dialog boxes from a webpage to never come up. How would I go about doing this?

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I have a script running via javascript on a page that automaticly silently prints a page however it does create a small dialog box that shows a progress bar. I cannot just suppress the dialog box because then the printing does not occur. Is there I can make it so that firefox never asks me if I want to suppress these dialog boxes.

Thank you in advance.

I have a script running via javascript on a page that automaticly silently prints a page however it does create a small dialog box that shows a progress bar. I cannot just suppress the dialog box because then the printing does not occur. Is there I can make it so that firefox never asks me if I want to suppress these dialog boxes. Thank you in advance.

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Is that progress bar from Firefox? Or is that coming from Windows or from print drivers?

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I am unsure of which it is, all it says is printing. I just need mozilla to stop asking me if I want dialog boxes produced by the page suppressed.

I have added a picture of the "printing" dialog box

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Attached is the box asking if I want the dialog boxes suppressed. This is the one I want to suppress/never show up

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Create a new Integer pref with the name dom.successive_dialog_time_limit and set the value to 0.

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Did you have to create a print.always_print_silent preference in order to encounter this issue?

I'm surprised Firefox offers the ability to suppress its own print progress dialog if that has the effect of breaking printing. This might have been an unintended consequence of the patch designed to protect users from being tormented by alert() and other script dialogs. Maybe someone should file a bug to exempt this one?