The Adobe Acrobat/Reader that is running can not be used to view PDF files in a Web Browser

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After installing Adobe Reader 9 I get this error: The Adobe Acrobat/Reader that is running can not be used to view PDF files in a Web Browser. Please exit Adobe Acrobat/Reader and exit your Web Browser and try again.

In Firefox click on Tools->Options and then on the Applications tab

Set the action for the Content Type: pdf File to Use Adobe Reader 9.x and the problem will be solved

About the author

Ian Carnaghan

I am a software developer and online educator who likes to keep up with all the latest in technology. I also manage cloud infrastructure, continuous monitoring, DevOps processes, security, and continuous integration and deployment.

About Author

Ian Carnaghan

I am a software developer and online educator who likes to keep up with all the latest in technology. I also manage cloud infrastructure, continuous monitoring, DevOps processes, security, and continuous integration and deployment.

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