"An Unknown Error Occured While Printing" in Firefox 15 for Mac

This is the newest version of Firefox. I've tried solutions from previous threads, and nothing seems to be working. It looks to be a system issue as it happens in all user accounts. When I went to about:config and searched for print.print_printer that preference does not come up. Tried deleting Firefox entirely (including application support and preferences) and reinstalled. Still doing the same thing. Can print from other browsers fine.

@sklein65
I thank you for your reply. My problem occurred when trying to print to the XPS printer, I found, that, if I disabled the UAC, the problem went away. You may want to give this a try. You can access you UAC by entering 'UAC' in the Window's Search Box. I had an additional problem with my 'Pinned' websites becoming unusable, I traced this down to Firefox version 24 (beta channel). I reverted back to v23.0 and I never had the problem, again. Note, that, all versions of v23.0 worked, the problem occurred when v24 was installed. I disabled all auto updating in Firefox.

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    @sklein65
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    It sounds like there's a compatibility problem.  You might try a different reader.  Here's a link to a PDF reader that is similar to Adobe.  Click Here  You might try another browser such as Chrome.  
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    @sklein65
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    Date:          4/9/2015 3:27:04 PM
    Event ID:      4100
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    Keywords:      None
    User:          mmmmmm\paufra
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            Shell ID = Microsoft.PowerShell
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        <Version>1</Version>
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    Hi Sir,
    First , please try to run the VMM configuration analyzer on that computer :
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    In addition , please try to use "VMMTrace" mentioned in following article to collect trace log and find some useful information :
    http://blogs.technet.com/b/jonjor/archive/2011/01/07/vmmtrace-simplified-scvmm-tracing.aspx
    Best Regards,
    Elton Ji
    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected] .

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