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.

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

Trying to install 3.6.8. Error: 3.6.8.exe is not a valid program

  • 1 resposta
  • 21 have this problem
  • 1 view
  • Last reply by cor-el

more options

Running Windows XP Home Edition on a Pentium III with 512MB RAM. Downloaded the new 3.6.8 installation files. Only options were Save and Cancel. Saved files, then tried to execute Firefox Setup 3.6.8.exe. Error message is "Firefox Setup 3.6.8.exe is not a valid Win32 application."

Running Windows XP Home Edition on a Pentium III with 512MB RAM. Downloaded the new 3.6.8 installation files. Only options were Save and Cancel. Saved files, then tried to execute Firefox Setup 3.6.8.exe. Error message is "Firefox Setup 3.6.8.exe is not a valid Win32 application."

All Replies (1)

more options

It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
You can try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
Do not forget to re-enable the scanning in your anti-virus software after you are finished with downloading and installing.

See http://kb.mozillazine.org/Unable_to_save_or_download_files (Disable virus scanning in Firefox preferences - Windows)


Your plugins list shows outdated plugin(s) with known security and stability risks.

  • Shockwave Flash 8.0 r22
  • Java Plug-in 1.5.0_01 for Netscape Navigator (DLL Helper)

Update the Java plugin to the latest version.

Update the Flash plugin to the latest version.