본 사이트는 여러분의 사용자 경험을 개선하기 위해 유지 보수를 진행하는 동안 기능이 제한됩니다. 도움말로 문제가 해결되지 않고 질문을 하고 싶다면 Twitter의 @FirefoxSupport 및 Reddit의 /r/firefox 채널을 활용하세요.

Mozilla 도움말 검색

고객 지원 사기를 피하세요. 저희는 여러분께 절대로 전화를 걸거나 문자를 보내거나 개인 정보를 공유하도록 요청하지 않습니다. "악용 사례 신고"옵션을 사용하여 의심스러운 활동을 신고해 주세요.

자세히 살펴보기

FF4 is pretty bad. Numerous issues since upgrading. Actually had to use IE to get to help site. Why did you do this to us?

  • 2 답장
  • 7 이 문제를 만남
  • 1 보기
  • 최종 답변자: Helper7677

more options

Question Very unhappy with FF4. Since upgrading, having trouble loading pages with error message: XML Parsing Error: undefined entity Location: jar:file:///C:/Users/AppData/Roaming/Mozilla/Firefox/Profiles/1wiseqnz.default/extensions/speedtest@gotomyhelp.com/chrome/speedtest.jar!/content/netError.xhtml Line Number 392, Column 33: Have used firefox for a long time and may switch browsers if can't correct this promptly. Having read other posts, sounds like it should still be in beta!

Question Very unhappy with FF4. Since upgrading, having trouble loading pages with error message: XML Parsing Error: undefined entity Location: jar:file:///C:/Users/AppData/Roaming/Mozilla/Firefox/Profiles/1wiseqnz.default/extensions/speedtest@gotomyhelp.com/chrome/speedtest.jar!/content/netError.xhtml Line Number 392, Column 33: Have used firefox for a long time and may switch browsers if can't correct this promptly. Having read other posts, sounds like it should still be in beta!

모든 댓글 (2)

more options

Try creating a New Profile

more options

That appears to be a problem with an Extension that you have installed; something to do with "speedtest".

  • ...Profiles/1wiseqnz.default/extensions/speedtest@gotomyhelp.com/...

Try disabling or removing that extension in Add-ons > Extensions, then restart Firefox.
If Firefox will not start because of the error, try starting in Firefox Safe Mode and disable or un-install the extension while in Safe Mode, the re-start Firefox using the desktop icon: