From MozillaZine Knowledge Base
Mozilla supports site icons (e.g., favicons and image thumbnails) in tabs, toolbars, and in the Bookmarks menu. This preference determines whether they should be downloaded and/or displayed.
Possible values and their effects
Load and display site icons. (Default)
Suppress the display of site icons.
First checked in
2006-11-06 by David Hyatt
Has an effect in
- Mozilla Suite (all versions since 0.9.6)
- Mozilla Firefox (all versions)
- SeaMonkey (all versions)