Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen
Archiviert

Firefox v38.0 is unable to run Java?

guigs beantwortet
pwmadsen

Since updating to v38.0 this morning I'm unable to run Java. I have the 8u45 plug-in installed (Ask to activate). Using the ’Verify Java version’ utility (Do I have Java?) at java.com yields the response: "We are unable to verify if java is currently installed and enabled in your browser". My PC system is a 64-bit Windows 7 EP, SP1.

Since updating to v38.0 this morning I'm unable to run Java. I have the 8u45 plug-in installed (Ask to activate). Using the ’Verify Java version’ utility (Do I have Java?) at java.com yields the response: "We are unable to verify if java is currently installed and enabled in your browser". My PC system is a 64-bit Windows 7 EP, SP1.

Alle Antworten (3)

You may neeed both the 32bit version and 64bit version: "Firefox To determine whether you are running on a 64-bit version of Firefox, use either of these methods.

   Check the About Firefox panel
   Type in the browser address about:support

If you are running 64-bit Firefox, it may be indicated as 64-bit (e.g., Win64), otherwise it is a 32-bit version of Firefox."

From: https://java.com/en/download/faq/java_win64bit.xml#verify%20browser

Installing 64-bit java doesn't solve the problem.

I have realized that before showing "We are unable to verify if java is currently installed and enabled in your browser" the ’Verify Java version’ utility (Do I have Java?) at java.com for a while shows a more detailed error message:

NullPointerException - Error while initializing managers Details: Java Plug-in 11.45.2.14 Using JRE version 1.8.0_45-b14 Java HotSpot(TM) Client VM (...) java.lang.NullPointerException at sun.plugin2.applet.JNLP2Manager.initialize(Unknown Source) at sun.plugin2.main.client.PluginMain.initManager(Unknown Source) at sun.plugin2.main.client.PluginMain.access$200(Unknown Source) at sun.plugin2.main.client.PluginMain$2.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Error while initializing manager: java.lang.NullPointerException, bail out

Looks like it was a bug: http://forums.mozillazine.org/viewtopic.php?f=38&t=2934623&sid=d03...

One work around I read that you stop Java from caching from the Java Console.