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Tambahkan fitur ekstra dan gaya untuk membuat Thunderbird milik anda.
Tutup![Ikon summersmile](https://addons.thunderbird.net/static/img/addon-icons/default-64.png)
summersmile 1.0
oleh Rob U.S.
Summersmile adds a lively flair to Thunderbird with a sunny yellow background, playful smiley graphics, and a "sunshine and smiles" theme that refreshes your email experience.