Cat adorned Firefox theme available in blue and green varieties.

Sepia-toned theme for Firefox as well as for Thunderbird. Previews presented.

Set of free Firefox themes that offer a variety of icon sets and color combinations.

Firefox theme supporting a number of extensions including Tabbrowser Preferences, Sort Bookmarks, Fission Extension, and Updates Notifier.

Provides an icon set and appearance that had been used as the default in Firefox for a while.