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

Firefox would not respond after update. same issue every few days

  • 7 replies
  • 14 have this problem
  • 1 view
  • Last reply by Huafen

more options

It hangs (shows not responding) and keeps giving this error. chrome://browser/content/tabbrowser.xml:2455

This has happened since last few days if I close firefox and restart / update firefox i get the above error. All other browsers work fine. I am done with reinstalling firefox multiple times. And please do not give suggestion about using firefox in safe mode as that requires the browser to be open in first place. Here the browser is hanged/ unresponsive I cannot click on anything..

All Replies (7)

more options

Sorry I think the error is. chrome://browser/content/tabbrowser.xml:2425

Its unreponsive currently, the error (script is running blah blah blah) will show in few mins. I suppose the number is 2425

more options

Try Firefox Safe Mode to see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that turns off some settings and disables most add-ons (extensions and themes).

(If you're using an added theme, switch to the Default theme.)

If Firefox is open, you can restart in Firefox Safe Mode from the Help menu by clicking on the Restart with Add-ons Disabled... menu item:

If Firefox is not running, you can start Firefox in Safe Mode as follows:

  • On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
  • On Mac: Hold the option key while starting Firefox.
  • On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
    (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)

Once you get the pop-up, just select "'Start in Safe Mode" Safe Mode Fx 15 - Win

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.

To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help others with the same problem.

more options

Thank you for the "Shift" key suggestion for starting firefox in safe mode. I tried that, it took 4 mins to firefox to open (so very slow still) but again with the same script error. and when I click to close it, it is again unresponsive.

more options

The 2425 refers to the line number in the tabbrowser.xml file.

  • chrome://browser/content/tabbrowser.xml

You can inspect the file source of this xml file by prefixing the link with the view-source: protocol.

  • view-source:chrome://browser/content/tabbrowser.xml
more options

Does not open in safe mode. Does not do work after reseting firefox either. And I tried the inspect file source but it shows "page not available"

more options

I was struggling with this issue to for months, but just today I tried following and it seems to work on my machine.

I stopped the unresponsive script, Closed the Mozilla Browser. then I started Mozilla once again using the "Shift" key. (Hold the Shift key down and then click on Mozilla browser). I got an message if I would like to start Mozilla in safe mode. I selected "Safe Mode" and then it worked. The first thing I had to do is simply change the Home page and other Page Tab to say "" and then I closed Mozilla once again. I have now restarted the machine and Mozilla at least 5-6 times and it is working fine.

I hope this helps someone. (I wasted about 3 months and was not able to use Mozilla till now)

more options

Thanks. I will try your solution.

I have given up on using Mozilla after 3 months of this issue. And basically forums telling me that I need to go through tons of intricate set up issues to get it working every time (provide them logs to analyze and whatnot and still no answer). I understand its a non-profit and people who are providing support are probably doing it out of good will. But just fix the dam$ issue, it troubles tons of users. 

Anyhow, thanks for your reply again :), I may not go to Mozilla again but sure hope it helps someone else.