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Firefox 2.0 integrates spell checking in form controls. When a user right-clicks in a field with spell checking enabled, “Dictionaries” appears in the context menu with an option to download dictionaries. This preference determines the URL loaded when that item is clicked.

Possible values and their effects

A string representing the URL to visit where the user can download dictionaries for the spell checker. Default value is “”. (%LOCALE% is replaced with the currently selected locale for “global” — usually general.useragent.locale — and %VERSION% is replaced with the current Firefox version.)

First checked in

2006-07-26 by Benjamin Smedberg

Has an effect in

  • Mozilla Firefox (nightly builds since 2006-07-26; 2.0)

Related bugs

Related preferences