Sorry. I think Firefox stores its about:config prefs in a SQLite database file, so you would not be able to safely modify the prefs by editing the file or the registry.

On 2017-08-21 12:43 PM, John Mayers wrote:

Hi Chris,

Does that settings change correspond with any file or registry edit?

-John

*John Mayers*  | * Technical Solutions Engineer*

Curriculum Associates  | [email protected] <mailto:[email protected]>

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/New i-Ready systems requirements are *_here <http://www.i-ready.com/support/i-ReadySystemRequirements.pdf>_*!/__

*From:*Chris Peterson [mailto:[email protected]]
*Sent:* Monday, August 21, 2017 3:39 PM
*To:* John Mayers <[email protected]>; [email protected]
*Cc:* [email protected]
*Subject:* Re: Flash Allow List

I don't think Firefox supports Windows Group Policy, but you can change Flash from "Ask to Activate" to "Always Activate" by setting the about:config pref "plugin.state.flash" to "2". (Pref value 1, the default, is "Ask to Activate" and 0 is "Never Activate".)

chris

On 2017-08-21 12:24 PM, John Mayers wrote:

    Hi Chris,

    Just following up.  Is there any group policy that can be enabled
    to set the Flash plugin to Always Activate?

    -John

    *John Mayers*  | * Technical Solutions Engineer*

    Curriculum Associates  | [email protected] <mailto:[email protected]>

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    /New i-Ready systems requirements are *_here
    <http://www.i-ready.com/support/i-ReadySystemRequirements.pdf>_*!/

    *From:*John Mayers
    *Sent:* Friday, August 18, 2017 1:31 PM
    *To:* 'Chris Peterson' <[email protected]>
    <mailto:[email protected]>;
    [email protected]
    <mailto:[email protected]>
    *Cc:* 'Benjamin Smedberg' <[email protected]>
    <mailto:[email protected]>
    *Subject:* RE: Flash Allow List

    Hi Chris,

    Thank you for this feedback.  We are actually releasing an edition
    of i-Ready on Sunday that will have this detection in place for
    all browsers.  Users will be able to “self-help” themselves when
    they encounter Flash blocked by default.

    In all of my research, I have yet to find a domain level policy
    that can be added to set Firefox to always “click to activate”
    either all together, or for specific sites.  If you know of a way,
    please let us know.

    Thank you,

    *John Mayers*  | * Technical Solutions Engineer*

    Curriculum Associates  | [email protected] <mailto:[email protected]>

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    ––––––––––––––––––––––––––––––––––––

    /New i-Ready systems requirements are *_here
    <http://www.i-ready.com/support/i-ReadySystemRequirements.pdf>_*!/

    *From:*Chris Peterson [mailto:[email protected]]
    *Sent:* Friday, August 18, 2017 1:25 PM
    *To:* John Mayers <[email protected] <mailto:[email protected]>>;
    [email protected]
    <mailto:[email protected]>
    *Subject:* Re: Flash Allow List

    Hi John, Firefox does not have a whitelist of sites that can load
    Flash without user action ("click to activate"). When users load
    your site, they will either see the "Activate Adobe Flash" UI in
    the web page (if the Flash content's dimensions are large enough)
    or a tiny plugin icon in the address bar (for Flash "pixels" that
    are too small for the UI).

    I recommend that you add a check for Flash being installed and
    activated. If Flash is installed but not activated automatically,
    your page can show instructions guiding users to click the
    "Activate Adobe Flash" and "Allow and Remember" buttons. A
    dedicated workflow like this to test for click-to-activate is
    probably more user friendly and reliable than just loading your
    regular Flash content and hoping users see and click the "Activate
    Adobe Flash" when your Flash content doesn't show up.

    In Firefox, Flash in click-to-activate mode will still be
    detectable by JavaScript in the navigator.plugins[] array (i.e.
    navigator.plugins["Shockwave Flash"]). Your JavaScript can detect
    that Flash is installed but not activated by embedding a Flash
    <object> that reports whether it is running or not by setting some
    JavaScript variable using Flash's ExternalInterface. I don't know
    if someone has already written a JavaScript+Flash library that
    already handles this click-to-activate, but I would love to know.
    In Chrome, however, Flash in click-to-activate mode will NOT be
    detectable in the navigator.plugins[] array, so JavaScript can't
    differentiate between Flash not be installed from
    installed-but-not-activated for this site.

    thanks,

    *From:* Benjamin Smedberg [mailto:[email protected]]
    *Sent:* Friday, August 18, 2017 1:24 PM
    *To:* John Mayers <[email protected] <mailto:[email protected]>>
    *Cc:* [email protected]
    <mailto:[email protected]>
    *Subject:* Re: Flash Allow List

    John, thank you for reaching out. Firefox does not intend to
    implement any whitelist of sites. I believe it is possible for
    enterprise sites to configure a whitelist for their individual
    deployment; for more information about that I would suggest
    posting on the Mozilla enterprise mailing list:
    https://mail.mozilla.org/listinfo/enterprise
    
<https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.mozilla.org_listinfo_enterprise&d=DwMFaQ&c=0i6vPcfBD4A2UCOW2UOV9gFNZGFhViJzZW4aaAjp7gA&r=TTxwTsYblOEtqK3f82AjgusCNpp5oIY4LPsE7SxEyrs&m=kZE776_vMhiCFbOAvAKXW4z1A_SPZnjZY8FyJN8VuI4&s=ITA1QXWwW9C1vTCjdw7vTp57t3tNx7-mD6Tgsw4PCjU&e=>

    --BDS

    On 2017-08-18 9:59 AM, John Mayers wrote:

        Good Afternoon,

        I work for an online instruction and diagnostic company called
        i-Ready.  We serve millions of kids across the US.  Our site
        currently is about 50% Flash, 50% HTML5.  We will be off Flash
        completely by August 2018.  In the interim, is there someone I
        can talk to about getting our domains added to a “whitelist”
        for Flash for Firefox?

        Thank you,

        *John Mayers*  | * Technical Solutions Engineer*

        Curriculum Associates  | [email protected]
        <mailto:[email protected]>

        T: 978-339-4340  |  C:  978-808-9451

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