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.

ค้นหาฝ่ายสนับสนุน

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.

เรียนรู้เพิ่มเติม

Error when starting Firefox 3.6. "Javascript Application error. Invalid username/password combination. If you continue to get this error, try entering your email address as your username." Any suggestions on what to look for to resolve this?

  • 4 การตอบกลับ
  • 75 คนมีปัญหานี้
  • 7 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย ferlicfleury@hotmail.com

more options

When starting Mozilla Firefox 3.6, I get an error window which opens up additionally overtop my browser windows stating:

"Javascript Application"

followed with :

"Invalid username/password combination. If you continue to get this error, try entering your email address as your username."

Obviously it is happening with one of my email addresses/usernames & password combinations of which I know the username for (which I choose not to post here) and I'm not sure where to begin looking for a resolution to this problem.

When starting Mozilla Firefox 3.6, I get an error window which opens up additionally overtop my browser windows stating: "Javascript Application" followed with : "Invalid username/password combination. If you continue to get this error, try entering your email address as your username." Obviously it is happening with one of my email addresses/usernames & password combinations of which I know the username for (which I choose not to post here) and I'm not sure where to begin looking for a resolution to this problem.

วิธีแก้ปัญหาที่เลือก

Yes, use Firefox's Safe mode.


Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

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.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
อ่านคำตอบนี้ในบริบท 👍 0

การตอบกลับทั้งหมด (4)

more options

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

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

more options

So what you're saying is I should start Firefox itself in Safe Mode, and not the computer itself?

Pls advise. Thanks!

more options

วิธีแก้ปัญหาที่เลือก

Yes, use Firefox's Safe mode.


Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

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.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
more options

I was able to resolve this by disabling (under Tools - Add-ons) Yahoo! Mail Notifier

Hope this helps some of you also!