搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

I get this message everytime I open Firefox: "[JavaScript Application]" and the message is: "TypeError: test is undefined."

  • 1 回覆
  • 1 有這個問題
  • 1 次檢視
  • 最近回覆由 cor-el

more options

Please explain why I get the following window message every time I open internet for the 1st time. The message window shows the following in the top of the window block: "[JavaScript Application]" and the message is: "TypeError: test is undefined."

My phone # is 360-584-5935.

Please explain why I get the following window message every time I open internet for the 1st time. The message window shows the following in the top of the window block: "[JavaScript Application]" and the message is: "TypeError: test is undefined." My phone # is 360-584-5935.

所有回覆 (1)

more options

This issue can be caused by an extension that isn't working properly.


Start Firefox in Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).