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

Firefox 5.0 with WinXP(SP3) error at launch: "procedure entry point "JS_DefinePropertyById could not be located in js3250.dll"

  • 2 การตอบกลับ
  • 14 คนมีปัญหานี้
  • 4 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย sukant

more options

Downloaded and installed FFox 5.0 this morning. Running XP/SP3 with Zone Alarm Extreme Security firewall,etc. Having been using earlier versions (4.x) for a long time with no problems. Now when launching FF5 get error msg "procedure point JS_DefinePropertyById could not be located in... js3250.dll" and the firefox process keeps running (as seen in the Task Manager). What's going on??

Downloaded and installed FFox 5.0 this morning. Running XP/SP3 with Zone Alarm Extreme Security firewall,etc. Having been using earlier versions (4.x) for a long time with no problems. Now when launching FF5 get error msg "procedure point JS_DefinePropertyById could not be located in... js3250.dll" and the firefox process keeps running (as seen in the Task Manager). What's going on??

การตอบกลับทั้งหมด (2)

more options

Download a fresh Firefox copy and save the file to the desktop.

  • Uninstall your current Firefox version.
  • Do not remove personal data when you uninstall the current version.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.

more options

>Uninstall the previous version of firefox >delete all the cache n browsing data >after uninstall go to system folder delete firefox folder >restart your system >and install firefox again(download firefox from mozilla site)