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I am writing a small Addon for the Tor Browser. I noticed that sdk/tabs is not working (Tor Browser 4.0.8 on Linux x64).

This small code example returns the number of all open tabs:

// main.js

var tabs = require("sdk/tabs"); console.log(tabs.length);

When started in Vanilla Firefox with one open tab, it returns "1". In Tor Browser it always gives 0, no matter how many tabs are open.

I came to this simple example after I noticed that attaching content scripts to tabs didn't work either, which did in Vanilla Firefox just fine. It seems that the whole sdk/tabs class is not working at all.

Trac:
Username: mabe