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My downloads will not open when I double click or right click in the download manager. What is going on?

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I cannot open my download by right clicking and opening, or by double clicking in the download manager. I have windows 7. What is the problem? I do not have a problem with internet explorer with the same download.

I cannot open my download by right clicking and opening, or by double clicking in the download manager. I have windows 7. What is the problem? I do not have a problem with internet explorer with the same download.

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It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.

Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.

See "Disable virus scanning in Firefox preferences - Windows"