full-disclosure - Re: Fwd: Re: OT: Firefox question / poll

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Message-ID: <CAMTPRkO8bTV3a-Mquv9-Ww_ozvE61xLNSYfG4YLD+m2BUFXpLg@mail.gmail.com>
Date: Tue, 20 Dec 2011 12:27:59 -0800
From: John Adams <jna@...tter.com>
To: Dave <mrx@...pergander.org.uk>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Fwd: Re: OT: Firefox question / poll

On Tue, Dec 20, 2011 at 12:18 PM, Dave <mrx@...pergander.org.uk> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 20/12/2011 17:40, Charles Morris wrote:
> > I'm curious what everyone's opinion is on the following question... esp.
> to any FF dev people on list:
> >
> > Do you think that the Firefox "warning: unresponsive script" is meant as
> a security feature or a usability feature?
>
>
It's neither, but could be construed to be a security feature.

It's a warning to indicate that a javascript included on the page is taking
an excessive amount of time to return control back to the UI.

Unlike the sandboxed javascript model in Chrome, when scripts spin out of
control in FF, they could take the browser down with them. This check
attempts to shutdown scripts that are consuming a crazy amount of resources
and/or are no longer functional.

-j

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