I have not been able to open any spreadsheets Microsoft Excel or OpenDocument Calc since upgrading to Firefox 4.0 and my web-based email services has reverted to an archaic version. Why have these issues developed since I made no other changes or updates?

I have included everything I know about it the above question. The crazy thing is that it has affected the ability to open any of my spreadsheets even though that should have nothing to do with my browser. I made no other changes to my computer and there have been no automatic updates going on from either Microsoft or OpenDocument at that time or even since.

Try with Flash clean install
*http://forums.adobe.com/thread/928315
for more
*http://forums.adobe.com/thread/1215076

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