Java plug-in does not work in Firefox after installing Java Rumi, May 1, 2020 Tested on Firefox 42 (old release) and Sea-Monkey 2.46/2.49. There are several workaround options. The simplest method is noted first and is recommended. The remaining available options are not recommended for non-technical users. Option 1: Add property name dom.ipc.plugins.java.enabled in Firefox preferences 1. Launch Firefox 2. Type about:config in the address bar 3. You will be presented with a Firefox warning about the configuration settings. After acknowledging the Firefox alert, you should see a listing of the configuration preferences. 4. Right-click anywhere inside the displayed list of preferences. Select New then select Boolean. 5. Add property name as dom.ipc.plugins.java.enabled 6. Add Preference name as dom.ipc.plugins.java.enabled. 7. A window will be displayed, select false. Then select OK. Option 2: Create “user.js” file with preference entry Instructions are based on Mozilla references listed below. 1. Use a text editor to create a “user.js” file in your Firefox profiles folder 2. Add entry: user_pref(“dom.ipc.plugins.java.enabled”, false); Option 3: Update “pref.js” file with preference entry 1. Locate the “pref.js” file in the Mozilla profiles folder 2. Find and update preference: user_pref(“dom.ipc.plugins.java.enabled”, false); Src: https://www.oracle.com/technetwork/java/javase/8u66-relnotes-2692847.html Related Administrations Collected Articles Configurations (Linux) FirefoxJRE 8Sea Monkey
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