Let's allow setting FF profile props or pick up the entire profile?

[andrei-khveras]

I am making the first forays to implement template framework based on Jasmine and FuncUnit for UI testing. I am launching browsers using karma-*-launcher(s) and now I run into "blocked popups" issue. To be more detailed, default browser profile has popups blocker enabled, that results into "FuncUnit.win is null" error in FF and similar errors in other browsers when running FuncUnit (cause browser blocks opening both new tabs and new windows).

The problem can be workarounded by adding
+'user_pref("dom.disable_open_during_load", false);\n';
as a 8th string of firefox-launcher's index.js file.
The same issue occurs in other browser launchers as well (Chrome).
Sample project that reproduces the issue attached.

It would be fine if you do one of the following to fix the issue:

1. Just include the string above and similar to index.js of the correspondent launchers
2. Add functionality to load profile PROPS from external file
3. Add functionality to pick up profiles in FF launcher

Would you?