with upgrade of Firefox to 42.0 I got some strange behavior..

I'm calling FB.init method like this:

FB.init({ 

        appId: '{$appid}',

        status: true, 

        cookie: true,

        xfbml: true,

        oauth: true

    });

But in Firefox it gets blocked, I get warning:

The resource at https://connect.facebook.net/en_US/all.js was blocked because tracking protection is enabled.

This is default behavior, I didn't set up any additional security or whatever..

What to do?

EDIT - after help and googling, this is a little bigger problem:

Turns out Firefox's Do Not Track and tracking protection are two separate things:

Do Not Track is enabled in Preferences/Options > Privacy > Tell sites that I do not want to be tracked. Enabling sends the DNT header but it does not block any requests.

Tracking Protection is enabled in about:config > privacy.trackingprotection.enabled. Enabling does not send the DNT header, but does block requests based on Disconnect's blocklist. So detecting 2 isn't as easy as checking navigator.doNotTrack, because that property is only set for 1.

Solution (temporarily) - try to do FB.init, if error do some alert..

try {

        FB.init({ 

            appId: '{$appid}',

            status: true, 

            cookie: true,

            xfbml: true,

            oauth: true

        });

    }catch(err) {

        alert('Some info for the user...');

    }

Does anyone have better solution?