Join us to show up for other Firefox users 🦊. Earn fun badges and Mozilla swag vouchers! Find out more: https://mzl.la/askafox150

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

Thread ini telah diarkib. Sila tanya soalan baru jika anda perlu bantuan.

when I click the + on the tab bar I get a Javascript error

  • 1 balasan
  • 1 ada masalah ini
  • 123 paparan
  • Balasan terakhir oleh cor-el
  • Diarkib

rtgjeg
rtgjeg

Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIDOMJSWindow.setTimeout]

Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIDOMJSWindow.setTimeout]

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor

Start Firefox in Use Troubleshoot Mode in Firefox to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
You can use "Disable all add-ons" on the Safe mode start window to disable all extensions.
You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")