Possible values and their effects
Note: Ability to change via Options was removed (Firefox 23.0.1 and up), you can toggle the preference with an addon JS Switch (11.3kb) from Tools and/or a toolbar button.
First checked in
Has an effect in
- Netscape (all versions since 6.0)
- Mozilla Suite (all versions since M11)
- Phoenix (all versions)
- Firebird (all versions)
- Firefox (all versions)
- Minimo (all versions)
- SeaMonkey (all versions)
- Addon JS Switch to toggle preference via Tools and/or a toolbar button.