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In Firefox v77 “Install Website as App” renamed to “Use This Site in App Mode”

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Mozilla recently released Firefox 77, the latest version of Firefox browser comes with lots of useful features and one out of them is the “Use This Site in App Mode“. In the previous version, it is called “Install Website as App” in v75 and “Site Specific Browser” in v73.

Firefox Use This Site in App Mode

Use This Site in App Mode feature lets users run any website in its own window with minimal UI. The web page with the feature will open up with no navigation controls or no toolbars, but won’t open up in full screen mode, gives you a feeling that you’re using a desktop application.

With default settings, the Use This Site in App Mode feature in the Firefox browser is disabled. In case, you have already updated to Firefox v77, then here’s how you can enable the feature.

Enable Use This Site in App Mode in Firefox

1. Launch the Firefox browser.

2. Open a new tab in the browser, typeabout:config in the address bar.

firefox about configuration page

3. Here on this page, click on the ‘Accept the Risk and Continue‘ or ‘I accept the risk‘ button.

4. In the search box available on the top, you need to type or paste the following command: browser.ssb.enabled

site specific browser feature value

5. When the value in results appears, you need to click on the Plus button available on the right side to add it to the browser configuration.

set site specific browser feature value to true

Once you do it, make sure browser.ssb.enabled value is set to True.

6. Restart your Firefox browser and you’re done. At this point, you have successfully enabled the feature.

Launch Website in Use This Site in App Mode

1. Launch any web page which you want to open in Firefox SSB mode.

2. Next, click on the (…) Page action icon available on the right side of the address bar.

Firefox use this site in app mode

3. From the menu, select “Use This Site in App Mode“. This is how the website will look like in this mode.

Or like this:

firefox site specific browser mode

To uninstall the website, you need to click on the Hamburger (Open menu) icon available on the upper right corner and select Sites in App Mode from the menu.

Firefox sites in app mode

Here, you will get a list of websites that you have installed as an app, click on the Uninstall (x) icon available next to the app.

uninstall sites from sites in app mode in firefox

The same feature is already available in Chrome and Edge Chromium with the name PWA. You might love to check the following blog posts:

What are your thoughts about “Use This Site in App Mode feature in Firefox? Find it useful? We would like to hear your opinion in the comments.

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Viney Dhimanhttps://geekermag.com/
Himachali, Mechanical Engineer, Webmaster at Geeker Mag, Follow it on Telegram https://t.me/geekermag | https://about.me/deadbycrushing

3 COMMENTS

  1. Any ideas why this wouldn’t work with local host domains being passed from the commandline? trying to use if for jupyter notebooks

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