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When i try to open a pdf in new tab. the browser errors out with a white screen and if i want to open in Document Viewer, i need a password. on my windows machine, it opens just fine. never showing a loading indicator. then i downloaded the .deb of adobe reader from their site and installed it. it fails to open it. on a different 12.04 computer. the adobe reader program opens the pdf but then goes back to grey screen saying "Adobe needs to be updated".

please help.

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The Document Viewer usually only asks for a password if the PDF file is encrypted (like an Digital Editons ebook).

Inside Google Chrome (not Chromium) you should be able to see the file using the internal PDF viewer.

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what of firefox? – Alex Jun 17 '12 at 21:54
Firefox can open PDF files only if the Adobe Reader PDF Plugin is installed. Otherwise it will only try to save/open the file through the application available in the system. – jorgehsrama Jun 18 '12 at 9:19

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