Windows error opening Internet shortcut or local HTML file - Firefox
From MozillaZine Knowledge Base
In some Windows systems, you may see an error dialog "Windows cannot find [URL]" appear (or two Firefox windows/tabs may open) whenever you click on an Internet Shortcut or local HTML file. If you are experiencing these problems, try the following:
In Windows 2000 or Windows XP:
- Open Windows Explorer
- Go to Tools -> Folder Options -> File Types
- Select "Extension: (NONE)" and "File Type: HyperText Transfer Protocol".
- Go to Advanced -> Edit File Type -> Select "open" -> Edit
- UNcheck "Use DDE" (the dialog should then hide the lower part)
- Click OK for that dialog and the next one.
- Repeat for "Extension: (NONE)" and "Firefox URL" (and any other protocols you want to fix).
- Repeat for "Extension: HTML" and "File Type: Firefox Document".
Sources:
- Bug 246078 comment 6
- MozillaZine forum post (more here and here)
Related bug reports
- Bug 246078 (2windows) – URLs from other apps result in two Firefox windows or a window and an error dialog (Set as Default Browser does a lousy job creating ddeexec keys)
- Bug 370053 – Clicking a URL shortcut icon opens two instances of Firefox
- Bug 370073 – Failure to load a web shortcut if Firefox is not already running