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How can I stop Firefox from blocking a Java applet from a site that I trust?

Posted

I'm trying to run an application that displays competitors' routes at an orienteering event. My problem is that Firefox blocks the Java applet. I get a window saying "Application Blocked by Security Settings. Your security settings have blocked an application from running with an insecure or expired jre."

I've tried looking at the Firefox help on "How to enable Java if it's been blocked", but that's no help. It talks about clicking on the red plug-in icon in the address bar, but there isn't a red plug-in icon in the address bar.

The application is from www.epoc.routegadget.co.uk. It worked when I used it last Sunday.

Help, please!

Chosen solution

hello, this warning isn't coming from firefox but from the java plugin itself - please update your plugins.

some more information about java's security settings are also available at oracle's support: https://www.java.com/en/download/help/jcp_security.xml

Read this answer in context 41

Additional System Details

Installed Plug-ins

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Application

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Misc

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  • Accessibility: No
philipp
  • Top 10 Contributor
  • Moderator
2043 solutions 8891 answers

Chosen Solution

hello, this warning isn't coming from firefox but from the java plugin itself - please update your plugins.

some more information about java's security settings are also available at oracle's support: https://www.java.com/en/download/help/jcp_security.xml

Question owner

Thanks, Phillip.

I hadn't spotted that it was a Java message rather than a Firefox one. (And I'm still not sure how to tell.)

I've updated the Java plug-in (and, while I was at it, some other plug-ins) and I can once more check my competitors' routes at orienteering events.

Thanks again.

Alastair

rcovey 0 solutions 1 answers

I have tried updating java but it won't because it is still blocked. What do you suggest I try next

philipp
  • Top 10 Contributor
  • Moderator
2043 solutions 8891 answers

hello rcovey, could you provide a little bit more information about the issue - which version of the java plugin do you have listed under firefox > addons > plugins, on which page do you get the error message & what's the exact wording...

back40 0 solutions 2 answers

I have this same problem but with facebook. So I removed the old java, downloaded and installed the latest java (25 I think) version, shut down and restarted my laptop, and it is still happening. Here is the error message I'm getting: [Java script Application] evalinsandbox:Error:Permission denied for <https://facebook.com> to create wrapper for object of class Unnamed class

philipp
  • Top 10 Contributor
  • Moderator
2043 solutions 8891 answers

hello back40, your problem is of different nature (java is not the same as javascript). please update your socialfixer extension: http://socialfixer.com/blog/category/releasenotes/

dsouza1 0 solutions 4 answers

I am trying to get Java to work on my Firefox browser. I have followed all the suggestions on the Java website and also all that I can find on the Mozilla support. Can anyone please help me as this is important to my work. When I do a check on the java website it says I need a plugin; but when I try to check which plugin, there is no plug in that is available. I have checked my plug in manager and all my plugins are up to date.

Please help. (I have downloaded the latest java - java SE7 update 25) Nigeld

cor-el
  • Top 10 Contributor
  • Moderator
10749 solutions 96724 answers

Note that you need the 32 bit Java version if you have a 64 bit Windows version because Firefox is a 32 bit application.

See also:

dsouza1 0 solutions 4 answers

Thank you Cor-el, I am not sure if I have firefox 32 bit or 64 bit version. K did the test you referred to and it does not say anything about what version of firefox I have. I am running firefox on my IMac version 10.8 (Mountian lion) adn have downloaded the latest Java 7 update 25. I am unable to find the Java for a 32 bit firefox browser Can you please guide me?


Thanks, Nigel d

cor-el
  • Top 10 Contributor
  • Moderator
10749 solutions 96724 answers

On Mac, Firefox is a 64 bit application (actually a i386/x86_64 universal binary).
The 32 version for Java only applies to the Windows platform.

See also:

dsouza1 0 solutions 4 answers

Hi Cor-el, Thanks for your confirmation that I have the 64 bit version of firefox on my IMac. But I still cannot get Java to work./ I have downloaded it, but the computer does not recognise I have it. When I check my Add-ons manager on Firefox, I do not see the Java applet plug in listed. How do I get the Java plug in on to my firefox browser? Thanks for your responses. Nigeld

GroundControl 0 solutions 4 answers

Mac platform Java 7 u25 FF v22

Glad to hear I'm not the only one with this issue. Re-installing Java and Firefox is not the answer. Solution: Create a new Profile in FF. This has worked, don't now why FF is not automatically recognizing Java. Once you've done this, Java will appear as a plug-in in the Add-Ons. Profile instructions are at this URL:

http://kb.mozillazine.org/Transferring_data_to_a_new_profile

GroundControl 0 solutions 4 answers

To create a new profile for Firefox, (Mac) launch the Terminal window located in the Applications folder and paste this information behind the prompt, hit return (FF Profile window will appear)

/Applications/Firefox.app/Contents/MacOS/firefox-bin -profilemanager

jpdemers 1 solutions 11 answers

If the Plug-in is not visible, Firefox may be set to start in 32-bit mode. On a Mac, you want to quit Firefox, find the Firefox application icon in your Applications folder, and Get Info on it (right-click, or cmd-I). There's a checkbox for 32-bit mode, which you'll need to uncheck. (Bizarre approach to setting a critical parameter, but I suppose there's a reason for it.)

GroundControl 0 solutions 4 answers

jpdemers - You Rock! This Worked!

I've been going crazy for months. Everytime I'd quit FF I'd have to re-create a new profile for FF to see the Java applet (not sure why this works).

Thanks so much for your help!

dugeen1 0 solutions 4 answers

Is there a solution for this yet? I keep clicking 'Reload' but it just sends me round and round in circles.

cor-el, you are specifically requested not to respond as your cut-and-paste responses are completely unhelpful.

jpdemers 1 solutions 11 answers

dugeen1: What OS? What version of the OS, what version of FF, what version of Java? You can't expect much help if people don't have the basics.

Modified by jpdemers

dsouza1 0 solutions 4 answers

Thanks for your queries. I am using OS X version 10.8.4 on my IMac which is having the problem. I am using Firefox 22.0 and it is up to date. I have downloaded the latest version of Java from tbe Java website. It is version 7 update 25 build 1.7.0_25-b15

So I have the latest version on the computer but I cannot get Java to work on firefox. Thanks for any help you can provide. Nigel D

GroundControl 0 solutions 4 answers

dsouza1: Please see jpdemers earlier response posted on 7/18/13. This answered my similar question: "If the Plug-in is not visible, Firefox may be set to start in 32-bit mode. On a Mac, you want to quit Firefox, find the Firefox application icon in your Applications folder, and Get Info on it (right-click, or cmd-I). There's a checkbox for 32-bit mode, which you'll need to uncheck. (Bizarre approach to setting a critical parameter, but I suppose there's a reason for it.)"

Thanks again jpdemers!

jpdemers 1 solutions 11 answers

If the 32-bit mode is not the problem, my next approach would be to completely re-install Firefox. Use something like AppCleaner to remove all the old traces, restart the Mac, then re-run the newest FF installer. With a clean set of default preference settings, it's hard to see what would block Java from running properly.

Bit of a pain to lose your bookmarks, so you might want to have them safely stashed, using Xmarks or Firefox's own synching feature.