This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

i am getting this error message.... java.lang.classnotfoundexception .... How do i solve this? Is it part of another problem i am having.... javascript void:0 .... ??? can anyone help please?

  • 1 reply
  • 15 have this problem
  • 7 views
  • Last reply by cor-el

jordan1
jordan1
more options

ever since i updated javascript to version 6 update 10, and firefox version 3.6.10.... i have had repeated "javascript:void 0" messages, web pages not loading that sort of thing... so, i updated to javascript update 21.

now i have this error message... "java.lang.classnotfoundexception" and a load of stuff about not recognizing languages and scripts and voided exceptions and ... way over my head computer talk... as well as "javascript void" messages.

I have updated... re-installed... ran scans... cleaned computer... cleared cache's... screamed... had a breakdown... er... you get the picture.... and cannot find anything wrong!

Pleeease! help me?

ever since i updated javascript to version 6 update 10, and firefox version 3.6.10.... i have had repeated '''"javascript:void 0"''' messages, web pages not loading that sort of thing... so, i updated to javascript update 21. now i have this error message... '''"java.lang.classnotfoundexception"''' and a load of stuff about not recognizing languages and scripts and voided exceptions and ... way over my head computer talk... as well as '''"javascript void"''' messages. I have updated... re-installed... ran scans... cleaned computer... cleared cache's... screamed... had a breakdown... er... you get the picture.... and cannot find anything wrong! Pleeease! help me?

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

To avoid confusion: http://kb.mozillazine.org/JavaScript_is_not_Java

See JavaScript settings and preferences for interactive web pages and http://kb.mozillazine.org/JavaScript

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems