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.

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

New version 9.0.1 on Windows 7 has a problem running JavaScript math iterations.

  • 2 replies
  • 34 have this problem
  • 1 view
  • Last reply by megawatt

more options

Dialog Error Box reads: A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete.

Script: http://www.classictesla.com/java/javatc/script/JTC_geotc.js:1299

The above dialog has never come up before. This program ran fine forever and has not changed. With Firefox 8, the program ran in 0.3 seconds. IMMEDIATELY as I allowed the browser to upgrade to 9.0.1, the program is now not working.

About 1000 people use this program. Knowing how slow fixes can be, I have to inform them not to allow FF to upgrade to version 9. Really sucks as I've been a FF fan forever.

If you go to that website, click the "Load Sample Coil" button, then scroll down and click the RUN JAVATC button, you'll see the problem

If there is a problem with the script, why only now after so many years of running? I can run it just fine on version 8. If there's something I can do on my end, I would love to (just tell me what the problem is).

My guess = "version 9 is limiting the number of iterations a script can run". This code use to run in 0.3 seconds and now is just hung. A very sad day for me. I guess I have to figure out how to go back to old version 8.

Dialog Error Box reads: A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: http://www.classictesla.com/java/javatc/script/JTC_geotc.js:1299 The above dialog has never come up before. This program ran fine forever and has not changed. With Firefox 8, the program ran in 0.3 seconds. IMMEDIATELY as I allowed the browser to upgrade to 9.0.1, the program is now not working. About 1000 people use this program. Knowing how slow fixes can be, I have to inform them not to allow FF to upgrade to version 9. Really sucks as I've been a FF fan forever. If you go to that website, click the "Load Sample Coil" button, then scroll down and click the RUN JAVATC button, you'll see the problem If there is a problem with the script, why only now after so many years of running? I can run it just fine on version 8. If there's something I can do on my end, I would love to (just tell me what the problem is). My guess = "version 9 is limiting the number of iterations a script can run". This code use to run in 0.3 seconds and now is just hung. A very sad day for me. I guess I have to figure out how to go back to old version 8.

Chosen solution

I can't Return my Firefox back to Version 8, and I can't find it anywhere on the net, I need to remember to Manually Download each new version, so I have a back up copy just in case the new one has bugs, so I can revert back to the old one, now I am stuck with Version 9

Read this answer in context 👍 0

All Replies (3)

more options

Only Firefox 9 seems to have that problem. Firefox 8 and Firefox 10 (beta) and later work. It helps a bit if I disable javascript.options.methodjit.content, but then it still takes 4 seconds compared to 0.2 or 0.3 seconds with the other Firefox versions. So that looks like a bug with the JIT compiler.

more options

Thanks for verifying. Following my message here, I reported this to FF. I'll let users know about the issue and try out the Firefox 10 (beta).

more options

Chosen Solution

I can't Return my Firefox back to Version 8, and I can't find it anywhere on the net, I need to remember to Manually Download each new version, so I have a back up copy just in case the new one has bugs, so I can revert back to the old one, now I am stuck with Version 9