Firefox AlternativesOnly apps categorised as Email Clients

The best Email Client alternative to Mozilla Firefox is Vivaldi, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to Mozilla Firefox and three of them are Email Clients so hopefully you can find a suitable replacement. Other interesting Email Client alternatives to Mozilla Firefox are SeaMonkey and Iceape-UXP.

filter to find the best alternatives

Mozilla Firefox alternatives are mainly Web Browsers, but if you're looking for Email Clients or IRC Clients you can filter on that. Other popular filters include iPhone, Kindle Fire, Mac, Linux, Windows + Open Source, Android and Windows. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Mozilla Firefox.
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Alternatives
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Alternatives list

  1. Vivaldi icon

    Vivaldi

     1318 likes

    Flexible browser featuring deep customization, integrated ad and tracker blocking, Chromium compatibility, powerful tab management tools, note sync, screenshot utility, custom web panels, theme and toolbar editing, plus support for Android, iOS, desktop, and privacy protections.

    199 Vivaldi alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    • Snapcraft
    • Android Auto
    • Flathub
    • Samsung Galaxy Store
    • Debian
    • Fedora
    • Ubuntu
    • openSUSE
    • NO flagNorway
    Vivaldi screenshot 1
    Good alternative?
     
    |
    42
  2. SeaMonkey icon

    SeaMonkey

     250 likes

    Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing in one application. Itis built on the open source Mozilla Gecko engine, the same code which underlies Thunderbird and is the base for the Firefox browser.

    194 SeaMonkey alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • DE flagGermany
    • European Union flagEU
    SeaMonkey screenshot 1
    Good alternative?
     
    |
    12
  4. Iceape-UXP icon

    Iceape-UXP

     Like

    Historically, Iceape was a re-branding of SeaMonkey by the Debian project. However, Debian discontinued Iceape in December 2013 citing security concerns and lack of a maintainer.

    125 Iceape-UXP alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    Good alternative?
     
3 of 3 Mozilla Firefox alternatives