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Run Firefox in headless mode, for automated testing. Ideally other concurrent instances will operate normally for other tasks.

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I'm currently writing a Selenium 2 (Ruby) automated testing suite.

I would like to be able to pass something that invokes an instance of firefox in headless mode.

This would allow me to run automated tests whilst carrying on with manual tasks on another, standard set-up instance of Firefox.

If this is possible, that would be fantastic.

I'm currently writing a Selenium 2 (Ruby) automated testing suite. I would like to be able to pass something that invokes an instance of firefox in headless mode. This would allow me to run automated tests whilst carrying on with manual tasks on another, standard set-up instance of Firefox. If this is possible, that would be fantastic.

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A good place to ask advice about web development is at the MozillaZine "Web Development/Standards Evangelism" forum.

The helpers at that forum are more knowledgeable about web development issues.
You need to register at the MozillaZine forum site in order to post at that forum.

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@cor-el Thank you very much for your help, I really appreciate it.