If Java is installed and enabled see Enabling Java, above check about:plugins to make sure that older Java plugins are not being detected from other locations, such as the installation directory browser plugins folder, which no longer exists by default.
Key Details of Java Runtime Environment (JRE)
Having Java files from previous versions in the browser plugins folder has been known to prevent the current Java version from working and those outdated Java files should be removed. See this Java. Mozilla adds unsafe Java plugin versions its Add-ons Blocklist as a security measure. Depending on the Java plugin and Mozilla browser version, this may result in the Java plugin being disabled in the Add-ons Manager or, in current Firefox and SeaMonkey versions, Java content may require "click to play" activation.
Starting in Firefox 26, the Java plugin defaults to "Ask to Activate" click to play activation required in the Add-ons Manager Plugins list, even though the latest version of Java is installed and that version is not considered vulnerable bug See How to allow Java on trusted sites at Mozilla Support and this blog post for more information. Starting in Java 7 Update 21, even though you activate Java, you'll still see a security dialog asking you to confirm that you want the Java content to run.
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If you see a message such as "Application Blocked by Security Settings" with no option to run Java, then Java has blocked the content for security reasons. Starting in Java 7 Update 51, RIAs Web Start applications and applets with certificates from an untrusted source self-signed and those with no certificate or missing application Name and Publisher information unsigned , are blocked by default.
For more information and screenshots, see this wiki. This plugin is not needed to run Java applets and can be disabled in the Add-ons manager. Java Deployment Toolkit plugin versions previous to 6. Java 6 Update 20 or later updates should remove the vulnerable plugin "npdeploytk. To manually remove the older, vulnerable plugin, find and delete all copies of "npdeploytk.
Note that, in July , Mozilla blocked all versions of the Java Deployment Toolkit, requiring "click to play" activation bug Sometimes after running a Java applet and then exiting Mozilla Suite, SeaMonkey or Firefox, the browser process may remain in memory  . Attempting to restart the browser without ending the existing browser process will result in a profile in use error or, in Firefox 1. Allowing the Java applet to fully load before exiting the browser may help prevent the problem from occurring . Exiting the page with the Java applet click the "Back" button or go to a different web page before closing the browser may also help .
To resolve the issue, try updating to the latest JRE version. Sometimes running a Java applet during the browser session can cause the cursor to behave erratically when you type in a text field, so that your text will display backwards or jumbled. Additionally, you may not be able to copy text to the clipboard.
If you are having these problems, exit the browser and end its process if necessary see above then restart your Mozilla application.
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The Java installer places a Java Console extension in the Firefox installation directory and uninstalling Java removes the extension. This is by design. Updating Java 6 Update 10 or later removes the previous Java version but may not uninstall the Java Console for that version, causing Firefox to accumulate multiple Java Console extensions.
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The Java Console extension is not needed for the Java plugin to work see above and can be disabled or removed from the Extensions list. On Windows, if the uninstall button to remove the Java Console extension is "greyed-out" or missing, exit Firefox, reopen Firefox from the context right-click menu "Run as Administrator" option, then try again. You can also manually remove unwanted extensions by opening the installation directory "extensions" folder and deleting the associated subfolder e.
This bug is now resolved, as reported in bug 33 , and should no longer be an issue. For your safety, Firefox has disabled your outdated version of Java. Please upgrade to the latest version.
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I wonder if the main reason for the updates is to sneak in new advertisers because if this is the case and I found out I would ditch it in a heartbeat. I hate being tricked or having my time wasted by greedy advertisers. Anyone know for sure? Please inform? Seems to run good in the background without any problems or trouble. Does what it's suppose to do, and that's a plus IMHO. I would recommend anyone to download this software, as it seems to make your computer run better and eliminates some problems that might occur if you don't have it up and running on your computer.
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They are free, except for the wasted time involved in repeatedly downloading the same thing over and over. I can't believe that all these incremental updates are really necessary. Plus Java tries to get the user to download the Ask toolbar and such. The posting of advertisements, profanity, or personal attacks is prohibited.
User Reviews. Reviews Current version All versions. Sort Date Most helpful Positive rating Negative rating. Pros Great tool, no nagging appearance. Cons Never any problems. Pros Actually installed an updated version of Java, according to the Java website, unlike what the java website kept trying to install. Cons None so far.
Summary I'd tried several times to update from the Java site and it didn't seem to be working. Pros Runs as advertised. No problems. The app that uses JRE works. I was trying to install jre-7umacosx-x I've read a lot of topics, tried all of them. After all of it, I just downloaded jdk-7umacosx-x The version 7 overwrited the 6.
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