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

Script error on startup is chrome://jqs/content/overlay.js:21

  • 1 cavab
  • 127 have this problem
  • 2 views
  • Last reply by Morbus

more options

At startup I get the error message that a script has stopped or is not responding - chrome://jqs/content/overlay.js:21

There are posts on it, but I always get "page not found" from mozilla help.  Firefox seems to be loading very slow. Any help would be appreciated.
At startup I get the error message that a script has stopped or is not responding - chrome://jqs/content/overlay.js:21 There are posts on it, but I always get "page not found" from mozilla help. Firefox seems to be loading very slow. Any help would be appreciated.

All Replies (1)

more options

It's possible that you are having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?

Whenever you have a problem with Firefox, whatever it is, you should make sure it's not caused by one (or more than one) of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in safe mode (don't forget to select Disable all add-ons when you start safe mode). If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See this article for information about troubleshooting extensions and themes and this one for plugins.

If you need support for one of your add-ons, you'll have to contact its author.

If the problem does not disappear when all add-ons are disabled, please tell me, so we can work from there. Please have no fear of following my instructions to the line, as all can be easily undone.