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Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

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Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

Attempting to install the "missing plug-in" using the Firefox prompts results in Java 7 Update 10 being installed, re-installing it is successful and does not resolve the issue, Firefox 18 refuses to allow/display java content even with the proper updated version of Java installed.

This problem ONLY occurred immediately following this mornings update to Firefox 18.0.

1 ACCEPTED SOLUTION

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Shooting Star Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

https://bugzilla.mozilla.org/show_bug.cgi?id=820759

Please don't post in the bug, but there is a workaround listed. I believe Oracle is working on a fix.

9 REPLIES
Shooting Star Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

Hi evan.finneran,

Can you give us more details? More context around where, when, and how to reproduce the issue would be most appreciated!

Matt

New Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

Context:

Yesterday: Java working fine.

This morning: Update to Firefox 18.0

Java will not work, not at all even with Java 7 Update 10 installed, not even the "verify java version" applet at http://www.java.com/en/download/installed.jsp will display.

When attempting to view/display any java content the "missing plug-in" error bar at the top of the page displays and attempting to install the required plug-in via that method does not resolve the issue even though the correct version of Java is installed and the plug-in checker verified it was "up-to-date".

New Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

For me, uninstalling and then reinstalling java helped. But from official website (not from the Firefox notification).

New Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

Thank you jawa, I tried that before creating this question.

Shooting Star Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

https://bugzilla.mozilla.org/show_bug.cgi?id=820759

Please don't post in the bug, but there is a workaround listed. I believe Oracle is working on a fix.

New Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

Matt_G:

The solution with erasing the listed registry keys after uninstalling Java and then reinstalling solved the problem.

Shooting Star Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

Good to hear it! There should be a true fix soon, but at least we've got a valid workaround.

New Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

It's all hosed now, thanks to the latest update to firefox 18.0 Like everyone else is saying, I updated my Java because ff did a hard block on the Java plugin. Now it appears that everything is cool with the new Java update, except that it doesn't work on ff, even though the ff plugin check says EVERYTHING IS FINE!!! Just another wonderful day here in the neighborhood.

New Contributor

Re: Upgrade to 18.0 has disabled Java even though plugin checker says Java 7 Update 10 is up to date, yet webpages using java display "missing plug in" error

I am having the exact same problem. I like to play backgammon online at Yahoo Games. IT says I am missing the latest Java plug in. I have downloaded and installed the latest Java (7) plugin. I deleted all the old Java environments (6 etc). Rebooted the machine. Still will not work. Good old Oracle.