What address does the dialog list? For example:

• addresses starting with the name of the site usually are features/functions of the page
• addresses from other sites often (but not always) are advertising networks - using an ad blocking extension can help address issues with slow or dysfunctional ad network scripts
• addresses starting with chrome:// usually are part of Firefox or of an extension you installed - the Skype extension sometimes causes this problem, for example

We have a general support article addressing potential solutions to this issue: Warning Unresponsive script - What it means and how to fix it.

Another common cause of unresponsive script errors on Windows 7-10 is the protected mode feature of the Flash player plugin. That feature has security benefits, but seems to have serious compatibility issues on some systems. You can disable it using the Add-ons page. Either:

• Ctrl+Shift+a
• "3-bar" menu button (or Tools menu) > Add-ons

In the left column, click Plugins. On the right side, find "Shockwave Flash" and click the More link. Then uncheck the box for "Enable Adobe Flash protected mode" and try that for a day to see whether it helps.

I am also having this problem, and only in Firefox. The sites work fine in Chrome. I tried installing the YesScript extension but it did not help. The sites are varied, and usually do not have flash.

Hi NJ2FL, did you notice any pattern to the unresponsive script name? Please see the first part of my earlier reply for the typical types of addresses you might see in the dialog.

Regarding YesScript, you need to set it to block particular sites, otherwise it doesn't do anything, so the first step is to see whether you can isolate one or more problem sites and possibly block them without breaking things.