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Error message: Problem connecting to server. URLs with ".file:" not supported.

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I just upgraded my iMac to OS X 10.8. Now I get this error message above frequently. I cannot find any URL with ".file:" at the end on my computer. I'm not sure how to find the problem. Do I need a special upgrade to Firefox for Mac OS X 10.8? Is there a way to locate the problem URL? Thanks for your help. Connie

I just upgraded my iMac to OS X 10.8. Now I get this error message above frequently. I cannot find any URL with ".file:" at the end on my computer. I'm not sure how to find the problem. Do I need a special upgrade to Firefox for Mac OS X 10.8? Is there a way to locate the problem URL? Thanks for your help. Connie

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Hi Connie, "file://" is but not ".file"

I did some research and found a few things:

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Why is there a colon appended?

It is either the file:// protocol to open a local file or a file with the .file file extension (i.e. without trailing colon)