From MozillaZine Knowledge Base
This preference controls how FTP and local directory listings will appear.
Possible values and their effects
Display in HTML format (Default).
Display as a XUL tree. (Mozilla Suite/Seamonkey only)
- 2 is the only valid value in Firefox.
First checked in
Has an effect in
- Netscape (all versions since 7.0)
- Mozilla Suite (all versions since 0.9.9)
- Phoenix (all versions)
- Firebird (all versions)
- Firefox (all versions)
- SeaMonkey (all versions)