アドオン

Bing 作者: Alessandro Catorcini, Beatrice Oltean

This is the only officially supported Bing add-on, provided by the Bing team in Microsoft.

Bing is a search engine that finds and organizes the answers you need so you can make faster, more informed decisions.

Wikipedia 作者: Wil Clouser (clouserw)

The incredible free encyclopedia.

Thesaurus - Reference.com 作者: Jeremy Morton

Thesaurus suggestions at your fingertips.

Search Add-ons for Firefox 作者: ki_ll

Search over add-ons.mozilla.org

iTunes Search 作者: Apple Nut

Search iTunes with Firefox

Google + Bing + Ask = Qrobe.it for Firefox 作者: qrobe

Qrobe.it searches Google, Bing and Ask simultaneously.

Features infinite scrolling, TAM instant answers, keyword suggest, news, private, no tracking.

Directly search YouTube, Netflix, Hulu, Google/Bing maps, access weather from the search bar.

Search Google+ 作者: Adrián Arroyo Calle

Google+ OpenSearch Engine.

DENiAL 作者: liarfish

Facebook Style 作者: pierresmack

grayscale1 作者: IncomingF5

Tucson Sky 作者: zog206

Deep ocean blue 作者: Alexanderh