Firefox - Temas - Papeis De Parede - Planos De Fundo - Wallpapers...

https://addons.mozilla.org/pt-BR/firefox/themes/

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https://ftp.mozilla.org/pub/firefox/releases/

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https://ftp.mozilla.org/pub/firefox/nightly/

Chrome - Chromium - Temas - Papeis De Parede - Planos De Fundo - Wallpapers...

https://chromewebstore.google.com/category/themes?utm_source=ext_app_menu

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https://vikyd.github.io/download-chromium-history-version/#/

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https://github.com/win32ss/supermium/releases

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https://chromeenterprise.google/download/

Water Cooler...

https://www.tryxzone.com/

Opera - Temas - Papeis De Parede - Planos De Fundo - Wallpapers...

https://addons.opera.com/en/wallpapers/?tag=animated

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https://get.opera.com/ftp/pub/opera/desktop/

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https://get.opera.com/ftp/pub/opera_gx/