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How do I change my theme back to the Firefox 4 original theme? Having downloaded an add-on.

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How do I change my theme back to the Firefox 4 original theme. Having downloaded an add-on.

How do I change my theme back to the Firefox 4 original theme. Having downloaded an add-on.

Modified by hayden117

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At the Addons manager (URL: about:addons ; Tools > Addons ; FirefoxButton > Addons), appearance section, choose to enable the default theme. Restart Firefox.