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firefox won't open...keep getting "404 not found" WHY? HELP


firefox won't open...keep getting "404 not found" WHY? HELP

Additional System Details

This happened

Every time Firefox opened

This started when...

no specific reason

Installed Plug-ins

  • Office Plugin for Netscape Navigator
  • Adobe PDF Plug-In For Firefox and Netscape
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Default Plug-in
  • Shockwave Flash 10.3 r183
  • DivX Web Player version
  • DivX VOD Helper Plug-in
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • Npdsplay dll
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20110614 Firefox/3.6.18 ( .NET CLR 3.5.30729) 8888096803 Mod/4.02112

More Information

404 Not Found nginx

  • Top 25 Contributor
  • Moderator
622 solutions 7999 answers

The 404 message usually indicates a web page can not be found. If you are seeing that message in Firefox then Firefox is up and running but either having problems connecting to the web or not finding a specific target page. Sometimes the address may be wrong, sometimes the site may not be available.

Have you written this message whilst using Firefox on another computer ?

See also the article

On the problem computer, if it is a Windows machine it will probably have Internet Explorer, does that work ok ?

Is it one particular website you are having a problem with, if so what is that site, and what is the web address as written in the location bar. If it is many pages give at least two examples please.

Copy and paste the location bar contents into your post

  • Keyboard key Ctrl + L (press the Control key hold it down than press the L key) that will highlight the location bar content, do that while trying to use the web page
  • Ctrl + C copies the info to the 'clipboard'
  • change to the message you are writing Ctrl + V pastes/inserts content at mouse cursor in your message

Question owner

Hi John: thanks for the reply...it is a windows machine; I do have internet explorer...same problem with that - 404 not found. Both 'internet' and 'firefox' icons on the desktop reveal this address when loading...


hope to hear from you later, cheers,

  • Top 25 Contributor
  • Moderator
622 solutions 7999 answers

That page is a Firefox start page.

Do other pages load ?

Are you using a different computer now to write these messages ?

Did you try reading the article I linked to in my last post.

(Not sure I will be posting any more replies Today, but read the article and post back, including the answers to the above questions. Someone else may reply)