We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

I've done"about:config" and set "dom.max_script_run_time" to 20 and more and nothing seems to work. What the heck is going on? It happens every time I go onto Y

  • 3 பதிலளிப்புகள்
  • 3 இந்த பிரச்னைகள் உள்ளது
  • 5 views
  • Last reply by Christophevond

Warning Unresponsive script

I've done"about:config" and set "dom.max_script_run_time" to 20 and more and nothing seems to work. What the heck is going on? It happens every time I go onto YouTube. I also have everything up to date.

Warning Unresponsive script I've done"about:config" and set "dom.max_script_run_time" to 20 and more and nothing seems to work. What the heck is going on? It happens every time I go onto YouTube. I also have everything up to date.

All Replies (3)

I can't remember: does the error dialog show you any more information about the script? I'm curious whether the problem script is on YouTube itself or one of the advertising site, or is part of an add-on.

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

1. Clear Firefox's Cache

orange Firefox button or Tools menu > Options > Advanced

On the Network mini-tab > Offline Storage : "Clear Now"

2. If needed, delete the site's cookies here (this will log you out)

While viewing a page on the site, right-click and choose View Page Info > Security > "View Cookies"

Then try reloading the page. Does that help?

If it happens with videos on YouTube then try to opt-out of HTML5 video on YouTube.


Bug 775491 - HTML5 unresponsive script errors on YouTube

If you have firebug installed, try disabling all the tabs. I had this problem and doing that fixed it for me.