From MozillaZine Knowledge Base
Find As You Type (or Type Ahead Find as it was originally called) allows you to start finding text on the page immediately by simply typing the text you’re trying to find. In Firefox, Find As You Type will also display the Find Bar at the bottom of the window and populate the Find field as you type. This preference allows you to make a text selection with the mouse, press “Ctrl+F”, and have your selection populate the Find Bar’s Find field.
Possible values and their effects
If text is selected when pressing “Ctrl+F”, load that text into the Find Bar for searching.
If text is selected when pressing “Ctrl+F”, just open the Find Bar normally.
First checked in
2007-02-10 by Asaf Romano (patch by Michael Ventnor)
Has an effect in
- Mozilla Firefox (trunk builds since 2007-02-10)
- Bug 30088 - Incremental find (like Emacs isearch) (type ahead find)
- Bug 250910 - Find toolbar: initialize with the current selection