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Java applets on "Allow and Remember" shows nothing (Ubuntu)

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  • Last reply by christ1

mount2010
mount2010
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I tried updating Java 7 to Java 8 due to the security block that Firefox did on Java 7's plugin- however, even after I removed libnpjp2.so(as root) in order to update the plugin and make a new hard link to the Java 8's libnpjp2.so, it still tells me that I am using a insercure version of Java and even if I click "Allow and Remember" or "Allow Now" the Java applet shows me nothing but a plain white area where the applet was,( refer to attachments). I have not tried reinstalling Java as I do not know how to do so and I do not think it'd help in this case. I aslo tried using IcedTea to run Java applets. My Java is installed though a PPA,as appearently "default-jre" is up to date. Java programs that are downloaded (e.g. Minecraft) still work. Is this an error on Firefox's side,or shall I move this to Ubuntu Forums? System: 32 bit with Firefox 39 on Ubuntu 12.04

I tried updating Java 7 to Java 8 due to the security block that Firefox did on Java 7's plugin- however, even after I removed libnpjp2.so(as root) in order to update the plugin and make a new hard link to the Java 8's libnpjp2.so, it still tells me that I am using a insercure version of Java and even if I click "Allow and Remember" or "Allow Now" the Java applet shows me nothing but a plain white area where the applet was,( refer to attachments). I have not tried reinstalling Java as I do not know how to do so and I do not think it'd help in this case. I aslo tried using IcedTea to run Java applets. My Java is installed though a PPA,as appearently "default-jre" is up to date. Java programs that are downloaded (e.g. Minecraft) still work. Is this an error on Firefox's side,or shall I move this to Ubuntu Forums? System: 32 bit with Firefox 39 on Ubuntu 12.04
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Chosen solution

Do you see Java in Add-on Manager - Plugins? If so, which version?

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christ1
christ1
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Chosen Solution

Do you see Java in Add-on Manager - Plugins? If so, which version?

mount2010
mount2010 Question owner
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Yes,if you're relating to About:addons.11.45.2.

christ1
christ1
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11.45.2 is vulnerable, and I believe Firefox blocks it. Ubuntu are not offering the latest version (yet). You do need v11.51 (aka Java 8u51). It can be downloaded from here. http://www.java.com/en/download/linux_manual.jsp

For help on installing please refer to the Ubuntu forums.

mount2010
mount2010 Question owner
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Sorry,but I did explain that I did try to update,and this happened due to the problem as said in the OP. I installed Java 8 and enabled Java in browser though Java 8's Control Panel, and when I tried using an Java applet, Firefox did not show the applets.

christ1
christ1
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You appear to have installed Java 8u45, which is outdated and vulnerable. Why it's still being offered from the Ubuntu repository I don't know. You'd need to ask this in a Ubuntu forum. What you need is Java 8u51.