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As you probably know 'Create application shortcut...' in Chrome creates desktop/taskbar shortcut to the web application (current URL). When the corresponding shortcut is clicked, Chrome opens separate window for just this URL w/o navigation bar. enter image description here So now I can use Google translate (almost) as desktop app.

Does (last) Firefox have this feature? Built-in or plugin? Actually I recall Firefox having this feature once, but I may be just dreaming.

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up vote 15 down vote accepted

Mozilla Prism (formerly WebRunner) by Mozilla Labs featured the "Create application shortcut" in Firefox:

Mozilla Prism (formerly WebRunner) is a product which integrates web applications with the desktop, allowing web applications to be launched from the desktop and configured independently of the default web browser.

Users can manually create web applications using Tools > Convert Website to Application.

However, since November 2010, Prism is listed as an inactive project at the Mozilla labs website. On February 1, 2011, Mozilla labs announced it would no longer maintain Prism.

There were several alternatives to Prism, but it seems that all of them have been discontinued and are no longer active or available for download.

In the following question: Why is Firefox Prism not in the repositories anymore?, there are two useful answers, regarding the discontinue of Prism and possible alternatives and solutions. It was mentioned that web application support in Firefox is currently in progress. Also, some workarounds have been suggested.

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This feature is so useful for apps like StackEdit, Regex101. Can't believe Mozilla would discontinue it. –  CMCDragonkai Nov 12 '14 at 4:00

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