Firefox ember-inspector displays blank pane about ember-inspector HOT 4 CLOSED

I found the following in the Browser Console on Firefox 25.0.1:

[19:20:22.829] TypeError: tabs.activeTab is null @ resource://gre/modules/XPIProvider.jsm -> jar:file:///Users/jcb/Library/Application%20Support/Firefox/Profiles/1ocfu59y.default/extensions/[email protected]!/bootstrap.js -> resource://gre/modules/commonjs/toolkit/loader.js -> resource://ember-inspector-at-emberjs-dot-com/ember-inspector/lib/devtool-panel.js:59

This is caused by running Firefox in private browsing mode. I often run Firefox in private browsing mode to avoid accumulating state (history and cookies) during testing. Is there an alternative to watching the tabs.activeTab load event to initialize the debugger?

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We should look into that.
@rpl do you have an idea about this?

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@teddyzeenny I'm pretty sure this issue is related to the private browsing permission:
https://addons.mozilla.org/en-US/developers/docs/sdk/latest/modules/sdk/private-browsing.html

I'm going to test it and create a pull request

@jonbuffington we need the tabs.activeTab to be able to route messages exchanged between the target tab and ember devtool panel, so we'll have to request private browsing permission to inspect tabs from private windows anyway.

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@rpl Thanks for the explanation and the patch.

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