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.

Avatar for Username

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Not Responding at start-up: Unresponsive script chrome://browser/content/tabbrowser.xml:0

  • 3 respostas
  • 41 have this problem
  • 1 view
  • Last reply by finitarry

peronium
peronium
more options

First, Firefox lags at start-up. A lot. I'd move on to doing other things, and then about five minutes later a Firefox window suddenly shows - but not a responsive one: one click and I'm thrown into the realm of "not responding". If I'm persistent enough, eventually I'll get a warning saying:

"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: chrome://browser/content/tabbrowser.xml:0"

Stopping the script does not appear to resolve the issue.

I've had this problem in the past, so I wiped and uninstalled Firefox from my computer, restarted, re-installed and restarted again. It seemed to work... for about one week, when the problem decided to arise again. There are only two settings I have altered: 1) do not remember history; 2) installed AdBlock Plus.

First, Firefox lags at start-up. A lot. I'd move on to doing other things, and then about five minutes later a Firefox window suddenly shows - but not a responsive one: one click and I'm thrown into the realm of "not responding". If I'm persistent enough, eventually I'll get a warning saying: "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: chrome://browser/content/tabbrowser.xml:0" Stopping the script does not appear to resolve the issue. I've had this problem in the past, so I wiped and uninstalled Firefox from my computer, restarted, re-installed and restarted again. It seemed to work... for about one week, when the problem decided to arise again. There are only two settings I have altered: 1) do not remember history; 2) installed AdBlock Plus.

All Replies (3)

finitarry
finitarry
more options

How often do you empty your cache? Things will slow down somewhat if old files have to be cleared out before new ones can be added.

peronium
peronium Question owner
more options

I can't specifically confirm the cache right now due to excessive lag, but at the very least I am quite positive I set it to automatically clear all history every time I close. I didn't even touch Firefox very often, to be honest, so I wouldn't expect that to be the main problem here.

peronium modificouno o

finitarry
finitarry
more options

Do you clear the cache when you close? Check the setting in Options > Privacy > Settings.