Double click “ dom.max_script_run_time“.In the config page search for “ dom.max_script_run_time” preference.

Click the button “I’ll be careful, I promise“. Don’t panic, you are just going to increase the script execution time.

You will get a warning “ This might void your warranty!“.

In the Firefox browser type in “ about:config” in the address bar and hit enter button.

Steps to reduce Unresponsive Script Warning: By increasing the script execution time limit, you can allow the script in the web page to run little longer and reduce the unresponsive script warning. Follow the below steps to increase the script execution time in Firefox browser. In case if you don’t want to see the message often and if you are willing to wait some more time for the script to complete, then you can increase the script execution time limit in Firefox browser. If you are just a user or viewer of the website, then you cannot change the script which is running long. Instead, you can continue running the script or stop the script, by clicking one of the buttons in the warning message box.

The java scripts runs too long because of bad and defective programming. If you are the webmaster of the web site, you have to check your scripts in the web page and make sure to split the long running scripts into smaller chunks. You can always choose to continue running the script or stop the script, by clicking one of these buttons. The warning message box will have a Continue button and Stop script button.

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