Launch JNLP file in MS Edge

azeemukain 6 Reputation points

I have a ASP.NET site which offers JNLP files for starting Java Web Start applications. I've set them as hrefs in <a> tags to download them. The behaviour I get from different browsers varies:

IE11: Auto launch
Firefox (45): Auto launch
Chrome (48): Manual launch from the download bar
Edge: Manual launch from the download bar
Chrome is Chrome and I've pretty much given up hope on that, but can Edge be set to launch JNLP files instead of offering the "Open/Show downloads" bar?

Microsoft Edge
Microsoft Edge
A Microsoft cross-platform web browser that provides privacy, learning, and accessibility tools.
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  1. XuDong Peng-MSFT 4,746 Reputation points Microsoft Vendor

    Hi @azeemukain ,

    According to your description, you seem to want to set MS Edge to download this type of file and open it automatically. If so, you can try to set the AutoOpenFileTypes policy in MS Edge, try the following steps:

    1. Open Group Policy panel
    2. User Configuration -> Administrative Templates -> Microsoft Edge
    3. Find list of file types that should be automatically opened on download-> Enable and add JNLP value to options
    4. Apply this policy setting

    And this setting may not work, and a similar problem appears: this policy is blocked-its value will be ignored, which indicates that there may be a problem with your system version. For more details, you could also refer to this case: Bug: Windows 10 Pro Education: This policy is blocked - its value will be ignored

    Best regards,
    Xudong Peng

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  2. Poole E 1 Reputation point

    If I am working from a Home version of Windows 10 10.0.19044 Build 19044 and do not have the Windows 10 Pro, Enterprise, or Education edition.

    I want to download and automatically load a .JNLP (Java) file.

    Is there a registry hack that can accomplish the same thing?

    Or should I download a copy of gpedit.msc and then try to configure?