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Office 2010 documents do not open from within Firefox

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Our company has started receiving Office 2010 for the laptops we use in-house. We use Firefox to run our mail client, Zimbra. All laptops have Windows XP Pro.

After installing Office 2010, the browser seems to "lose" the Office file associations. In other words, if I try to open an attached .docx/.xlsx/etc file, Firefox thinks it's a ZIP file and tries to open it with the ZIP program and not Word, Excel, etc.

How can I get the browser to reassociate these files to open with the proper program?

Our company has started receiving Office 2010 for the laptops we use in-house. We use Firefox to run our mail client, Zimbra. All laptops have Windows XP Pro. After installing Office 2010, the browser seems to "lose" the Office file associations. In other words, if I try to open an attached .docx/.xlsx/etc file, Firefox thinks it's a ZIP file and tries to open it with the ZIP program and not Word, Excel, etc. How can I get the browser to reassociate these files to open with the proper program?

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