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Computer upgrades to Ff 8.0, but when it does my webmail is messed up and any attachments convert to .ashx files and they cannot be opened. Why is this occurring? Is it likely to be fixed soon? I keep having to reinstall Ff 7.0 and it is a nuisance.

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I cannot open attachments that I absolutely must be able to open. My tech guy figured out it is a Ffox issue, and that it is specifically a Ffox 8.0 issue. When I reinstalled Ffox 7.0, viola, problem fixed.

I cannot open attachments that I absolutely must be able to open. My tech guy figured out it is a Ffox issue, and that it is specifically a Ffox 8.0 issue. When I reinstalled Ffox 7.0, viola, problem fixed.

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Outlook Web Access sends an illegal Content-Dispositon header to Firefox. This is no longer allowed in Firefox 8. Firefox 9 will have a workaround for this so that Microsoft has time to fix their software.
See http://support.mozilla.com/nl/questions/895024
https://support.mozilla.com/en-US/search?q=attachement.ashx
Bug 704989 - add workaround for broken Outlook Web App (OWA) attachment handling
You can help us by sending a complaint to Microsoft and tell them that their software is broken.