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On a Mac OS X 10.8.2 I can't read with firefox .pdf web pages, while I can do it with Safari and Thunderbird. Solution?

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I have installed on my Mac not only Preview but also Acrobat X Pro. The .pdf web pages opened with Mozilla Firefox are blank, while with Safari I can see the documents. There must be a matter of plugin.

I have installed on my Mac not only Preview but also Acrobat X Pro. The .pdf web pages opened with Mozilla Firefox are blank, while with Safari I can see the documents. There must be a matter of plugin.

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We have seen reports that the Adobe Reader plugin isn't working on Mac.

Disable the Adobe Reader plugin in Firefox (Tools > Add-ons > Plugins) and use the external Adobe Reader application or Preview application instead.

  • Firefox > Preferences > Applications > Adobe PDF document : Use Adobe Reader

PDF files may also be found under another entry like Portable document.

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So, it's a general problem. Thank you.