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All In One Favicon adds favicons to your site and your admin pages.
You can either use favicons you already uploaded or use the builtin upload mechanism to upload a favicon to your WordPress installation.

All three favicon types are supported – .ico, .png and .gif (may be animated)
Also, Apple Touch Icons are supported.

Localization

Bahasa Indonesia (id_ID) by EKO
Czech (cs_CZ) by Neteyes
Danish (da_DK) by GeorgWP
Dutch (nl_NL) by Pieter Carette
English (en_EN) by Arne Franken
French (fr_FR) by Christophe Guilloux
German (de_DE) by Arne Franken
Hebrew (he_IL) by Ahrale
Italian (it_IT) by Valerio Vendrame
Polish (pl_PL) by Piotr Czarnecki
Portuguese (pt_PT) by Miguel Ângelo Patricio
Serbian (sr_RS) by Balkanboy Media team
Simplified Chinese (zh_CN) by Tunghsiao Liu
Spanish (es_ES) by Eddy Ernesto Ríos
Slovak (sk_SK) by Viliam Brozman
Swedish (sv_SE) by Christian Nilsson
Turkish (tr_TR) by Ömer Faruk Karabulut

Is your native language missing?
Translating the plugin is easy if you understand english and are fluent in another language.
I described in the FAQ how the translation works.