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  • How to install java on browser

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    How to install Java web plug-in?

    Here is an easy guide for you to install Java on your specific system:

    1. Windows
    a. First of all you need to check whether you have Java on your system or not.
    b. You can simply do this by going on the following link- http://www.javatester.org/version.html .
    c. If you have version 1.6 or above you dont need to go ahead with the installation.
    d. To download the appropriate version of Java visit en.softonic.com/s/free-java-download/windows-xp.
    e. Download Java Runtime Environment 7.0.450.18 for Web and Browser.
    f You may test whether Java is working on your computer by following step b.
    g. A notification will convey the same.

    2. Mac

    a. First of all you need to check whether you have Java on your system or not.
    b. You can simply do this by going on the following link- http://www.javatester.org/version.html .
    c. If you have version 1.6 or above you dont need to go ahead with the installation.
    d. Go to your Terminal and type Java. If Java is not installed on your system then a pop up will appear indicating the same.
    e. The pop up will ask for permission to install Java.
    f. Follow the steps of installation and test whether Java is working on your computer by following step b.
    g. A notification will convey the same.

    Note- To allow Java on Safari browser: In Safari, choose Safari > Preferences or press Command-comma (-,) Click "Security". Check "Allow Java". Close the Safari preferences window.

    3. LINUX There are two types of installation packages.

    All linux packages are available at http://java.com/en/download/manual.jsp.

    Java on Linux Platforms This is an archive binary file that can be installed by anyone (not only the root users), in any location that you can write to. However, only the root user can install Java into the system location.

    Java on RPM-based Linux Platforms 32-bit RPM-based Linux platforms, such as Red Hat and SuSE, use a RPM binary file (.rpm) in the system location. You must be root to perform this installation. Steps to Download and install 32- bit Java for Linux:

    a. Download

    Become root by running super user and entering the super-user password. Uninstall any earlier installations of the Java packages. rpm -e Change to the directory in which you want to install. Type: cd For example, to install the software in the /usr/java/ directory, Type: cd /usr/java Install the package. rpm -ivh jre-7u7-linux-i586.rpm

    To upgrade a package, rpm -Uvh jre-7u7-linux-i586.rpm Delete the .rpm file if you want to save disk space. Exit the root shell. No need to reboot.

    b. Install

    Java on Linux platform The instructions below are for installing version Java 7 Update 7 (7u7). If you are installing another version, make sure you change the version number appropriately when you type the commands at the terminal

    Change to the directory in which you want to install. Type: cd For example, to install the software in the /usr/java/ directory, Type: cd /usr/java/ Move the .tar.gz archive binary to the current directory. Unpack the tarball and install Java tar zxvf jre-7u7-linux-i586.tar.gz

    The Java files are installed in a directory called jre1.7.0_07 in the current directory. In this example, it is installed in the /usr/java/jre1.7.0_07 directory. Delete the .tar.gz file if you want to save disk space.

    Java on RPM-based Linux Platforms The instructions below are for installing version Java 7 Update 7 (7u7). If you are installing another version, make sure you change the version number appropriately when you type the commands at the terminal

    Become root by running su and entering the super-user password. Uninstall any earlier installations of the Java packages. rpm -e Change to the directory in which you want to install. Type: cd For example, to install the software in the /usr/java/ directory, Type: cd /usr/java Install the package. rpm -ivh jre-7u7-linux-i586.rpm

    To upgrade a package, rpm -Uvh jre-7u7-linux-i586.rpm Delete the .rpm file if you want to save disk space. Exit the root shell. No need to reboot.

    c. Enable and Configure To configure the Java Plugin follow these steps: Exit Firefox browser if it is already running. Uninstall any previous installations of Java Plugin. Only one Java Plugin can be used at a time. When you want to use a different plugin, or version of a plugin, remove the symbolic links to any other versions and create a fresh symbolic link to the new one. Create a symbolic link to the libnpjp2.so file in the browser plugins directory Go to the plugins sub-directory under the Firefox installation directory cd /plugins Create plugins directory if it does not exist. Create the symbolic link ln -s /lib/i386/libnpjp2.so Start the Firefox browser, or restart it if it is already up.

    Note: You can use similar methods to download it for other browsers. For more information on downloading through Ubuntu visit the following link: http://www.wikihow.com/Enable-Oracle-Java-in-Your-Web-Browsers-on-Ubuntu-Linux

    Please feel free to share the experiences you had while installing java on your browser as this will help other people who read the post.

 4 Comment(s)

  • alt text For the Error like application blocked by security settings can be solved by installing the latest version of java/JDK that is on your browser (You can check your browser's Java Version through this link http://www.javatester.org/version.html ) and than changing the security for that newly installed java by following below steps :

    • Go to the bin folder of jre that is Java in Program Files folder.
        C:\Program Files\Java\jdk1.7.0-45\jre\bin
    • Open javacpl in the Bin folder (Java Control Panel).

    • Change Security from High to Medium.

    • Restart the browser.
  • if you are facing this issue: "your security setting has blocked an application from running with an out-of-date or expired version of java"

    solution
    1. Simply update Java to the latest version and the application should run.

    1. If for some reason you can't update and absolutely need to run the application you can temporarily reduce the Java security level. This is not recommended, but if you fully trust all Java applications that you use on the system, lowering the security level will allow the application to run Open Control Panel > Java Switch to Security tab Reduce Security Level from High to Medium

    You have must restart your browser.

  • Java SE 6 web plug-in and Web Start functionality

    Open Terminal, located in the Utilities folder.
    Enter this command, then press the Return or Enter key:
    
    sudo mkdir -p /Library/Internet\ Plug-Ins/disabled 
    
    Enter this command, then press the Return or Enter key:
    
    sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled
    
    Enter this command, then press the Return or Enter key:
    
    sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI.plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin 
    
    To re-enable Java SE 6 Web Start, enter this command, then press the Return or Enter key:
    
    sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws
    

    Reference: http://support.apple.com/kb/HT5559?viewlocale=en_US

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