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how to install firefox extension programmatically

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  • 1 has this problem
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  • Last reply by cor-el

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I want to install firefox extension from my windows desktop application, how can I do that? For Chrome, I can add my extension id to registry, then Chrome prompts for enabling the extension when start next time. I wonder if there is similar way in firefox.

Thanks Herb

I want to install firefox extension from my windows desktop application, how can I do that? For Chrome, I can add my extension id to registry, then Chrome prompts for enabling the extension when start next time. I wonder if there is similar way in firefox. Thanks Herb

All Replies (7)

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Download the full installer from; Download Firefox For All languages And Systems {web link}

If you don't want to use its default settings, use the manual option.

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1. Drag the XPI file from the desktop into the Firefox browser window. 2. Use File > Open File thru the Menu bar, Or {Alt - F, then O} to get the Open File menu in Windows Explorer.

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the-edmeister said

1. Drag the XPI file from the desktop into the Firefox browser window. 2. Use File > Open File thru the Menu bar, Or {Alt - F, then O} to get the Open File menu in Windows Explorer.

Thanks but i want to do it from C codes, not manually.

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Can anyone help pls?

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I think that would require to drop the XPI file in the extensions folder in the Firefox profile folder. You will have to edit the file name and make the first part the ID as defined in the manifest.json file (applications.gecko.id) like required with the other methods.