Browsers That Still Support Java & How to Enable It

Opera One is one great browser to have around, but the big question is this: Does it support Java?

Well, newer versions of Opera One use an already embedded version of Java. In order to make sure you will be able to run or access Java-based content, all you need to do is open Opera One’s settings and go to Security and Privacy.

Next, perform a quick search using the Java keyword and make sure the option Sites can use Javascript (under Default behavior) is on, as shown in the print screen above.

For older versions, here’s what you need to do:

1. Activate the Enable JavaScript option under the Content section.
2. Next, head over to the Plugins section.
3. Toggle the Java (TM) Platform module to Always enable.
4. Close Opera One and reopen it.

Opera One

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Like many others, Firefox no longer provides Java support for its current versions. In fact, the latest version to include this service is version 51. But that does not mean you won’t be able to run Java content in your Firefox browser.

You can install a 32-bit version of Firefox and manually add the Java plugin, as follows:

Open Firefox and click the upper left-hand corner menu.

1. From the Tools menu, click on Plugins/Add-ons. Alternatively, you can open a new Firefox tab and type in the address bar: about:addons
2. Locate the Java (TM) Platform SE 6 U23 plugin in the list and click or Enable/Ask to activate/Always activate, according to your Firefox version.
3. If it’s the JavaScript item you’re interested in, instead of the above mention, simply type about:config
4. Accept the warning message if you’re prompted to and enter javascript.enabled.
5. Right-click on the entry found and toggle it to Enabled.
6. Restart Firefox and you’re all set!

⇒ Get Firefox

As you’ve probably heard by now, all Chromium-based browsers ditched NPAPI and Chrome makes no exception. In this context, it’s only fair to ask: does Chrome use Java?

Starting with version 42, Chrome no longer supports the Java plugin. The change did not target Java applets in particular, but rather a global overhaul of the plugin architecture required to cope with modern technologies.

This moment opened Pandora’s box for errors stating that plug-in is not supported in Google Chrome, in connection to Flash as well as other technologies.

Still, not all is lost. Don’t worry, we get that some things are worth holding on to and we’re here to help.

How do I enable Java in Chrome in 2023?

You can either use the IE Tab Chrome extension or run a specialized applet viewer such as the CheerpJ. We will focus on the first one for now.

1. Open the Chrome Web Store and go to Extensions.
2. Search and install the IE Tab extension.
3. Next, restart your Chrome browser and open the test page from Java to verify your current version.
4. Make sure you upgrade to the latest one if it’s not already the case and that should do it.
5. Finally, to enable the JavaScript feature in Chrome, go to Security and Privacy.
6. Under the Content section, toggle the switch next to Sites can use Javascript to On.

⇒ Get Google Chrome

Obviously, Internet Explorer is the go-to browser that still supports Java applets natively. But beware, IE itself is an endangered species and it’s only a matter of time before it will be exterminated.

For instance, Microsoft’s freshest OS, Windows 11 has turned its back on Internet Explorer for good.

But, if you have not jumped the Win 11 boat yet, you’re in luck. Here’s how to enable Java in Windows 10 with IE:

1. Open the Internet Explorer browser and click on Tools, then Internet Options.
2. Go to the Security tab, and press Custom Level.
3. Locate the following item in the list: Scripting of Java applets
4. Once you found it, set its button to Enable and save the changes (as shown in the screen shot above).

Editor’s tip

Even though IE still supports Java, you might still encounter issues with applets not loading properly. If that’s the case, here are some preliminary steps you can try:

➡ Restart the browser (close all its windows and reopen it to do so)
➡ Reinstall Java altogether
➡ Make sure Java content is enabled in the Java Control Panel (From your PC’s Control panel, go to the search option and type in Java. Then, click the Java icon to launch the Java Control Panel and head to the Security tab. Finally, check the box corresponding to the option Enable Java content in the browser.)

If your browser still displays an error stating that Java is not supported, we prepare a comprehensive troubleshooting guide, so feel free to take a closer look.

⇒ Get Internet Explorer

Does Edge have Java built-in? Microsoft’s browser also dropped support for Java plugins, thus applets are not easily accessible.

However, you can use Edge as a launching platform for Internet Explorer. To do so, simply open its settings and search for Internet Explorer.

Next, you can toggle the following options to Allow:

• Internet Explorer mode button
• Allow sites to be reloaded in the Internet Explorer mode
• Let Internet Explorer open sites in Microsoft Edge (as shown in the above print screen)

Don’t forget to check if Java is enabled in Internet Explorer (as shown in the previous solution).

Finally, to enable JavaScript in Edge, you will have to use the Group Policy editor.

1. From there, go to User Configuration -> Administrative Templates-> Windows Components.
2. Expand the Microsoft Edge folder and click twice on Allow to run scripts (JavaScript).
3. Enable this option, then save the changes and exit the editor.

⇒ Get Microsoft Edge