Free Firefox Alternatives for PortableApps.com

There are many alternatives to Mozilla Firefox for PortableApps.com if you are looking for a replacement. The best free PortableApps.com alternative is Firefox Developer Edition, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Mozilla Firefox and five of them are free and available for PortableApps.com so hopefully you can find a suitable replacement. Other interesting free PortableApps.com alternatives to Mozilla Firefox are SeaMonkey, Google Chrome, Opera and SRWare Iron.

filter to find the best alternatives

Mozilla Firefox alternatives are mainly Web Browsers, but if you're looking for Ad Blockers or Email Clients you can filter on that. Other popular filters include iPhone, Kindle Fire, Mac, Android, Linux, Integrated into iOS and Android + Open Source. 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 list

  1. Firefox Developer Edition brings you latest features, fast performance, and the development tools you need to build for the open web. Its powerful development tools will extend your ability to work across multiple platforms from one place.

    179 Firefox Developer Edition alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • PortableApps.com
     
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    4
    Firefox Developer Edition vs Mozilla Firefox Comments
    axy_david
    Positive
    9

    If you have issues with Firefox not being fast enough but don't wanna go Chrome try this! Also faster than Chrome.

    dabockster
    0

    It's literally just a Firefox beta build.

    solandre-wyze-ap-shelta
    Positive
    0

    Lots of good features to try out.

    3 of 4 comments
    • Firefox Developer Edition is Free and Open SourceMozilla Firefox is also Free and Open Source
  2. SeaMonkey icon
     242 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.

    187 SeaMonkey alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
     
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    12
    SeaMonkey vs Mozilla Firefox Comments
    Top Positive Comment
    soul1472
    0

    good Firefox's alternative for old computers.

    Top Negative Comment
    dabockster
    1

    Based on an outdated version of Firefox. Has trouble rendering most websites. Can also crash more.

    solandre-wyze-ap-shelta
    Positive
    0

    Useful as a fallback and for testing things.

    3 of 12 comments
    • SeaMonkey is Free and Open SourceMozilla Firefox is also Free and Open Source
  3. Google Chrome icon
     4961 likes

    Open-source browser featuring real-time web translation, integrated password manager, dark mode, task-level resource management, multi-user account support, automatic updates, and cross-device sync, available on all major operating systems for secure, efficient browsing.

    92 Google Chrome alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Flathub
    • PortableApps.com
     
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    24
    Google Chrome vs Mozilla Firefox Comments
    Top Negative Comment
    jamiegray
    17

    Closed source made by Google. Much less trustworthy than open source, made by the non-profit Mozilla

    dabockster
    Negative
    0

    Google is a monopolist company because of Chrome and the amount of power it can exert over web development. Even Microsoft Edge is better.

    Curuxa
    Negative
    5

    Proprietary, made by a profit company based on spy it users, cannot custom, not equivalent like about:config in Firefox, cannot disable telemetry or see code, so it is a black box. Shitty add-ons, Chrome is killing Third party and also going to kill third add-ons... Performance is ok but I don't see difference with Firefox (in Linux also Firefox is WAY BETTER in performance) Don't support monopolist companies.

    3 of 24 comments
    • Google Chrome is Free and ProprietaryMozilla Firefox is Free and Open Source
  4. Opera icon
     1822 likes

    A fast, secure web browser with advanced privacy features like a built-in VPN with ad blocking, Speed Dial, smart AI, cloud sync, picture-in-picture mode, and easy extensibility through plugins and extensions.

    238 Opera alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • PortableApps.com
    • Kindle Fire
    • Flatpak
    • HUAWEI AppGallery
    • Samsung Galaxy Store
    • Snapcraft
     
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    12
    Opera vs Mozilla Firefox Comments
    Top Positive Comment
    FayyZ
    3

    If you want to share your data to the CPP, use this browser, this is the best way to do it ??

    Top Negative Comment
    dabockster
    1

    Has more PRC spyware than TikTok. Avoid at all costs.

    Kelson V
    Negative
    1

    Opera used to be good back in the day, but IMO it lost its way in the early 2010s. One of the founders went on to start Vivaldi, which is a spiritual successor to the original, and that one's my current favorite Chromium browser.

    3 of 12 comments
    • Opera is Free and ProprietaryMozilla Firefox is Free and Open Source
  5. SRWare Iron icon
     188 likes

    SRWare Iron, or simply Iron, is a fork of the free and open-source web browser Chromium , of which Google Chrome is a fork of. Iron primarily aims to eliminate usage tracking and other privacy violating...

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • PortableApps.com
     
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    1
    SRWare Iron vs Mozilla Firefox Comments
    dabockster
    Negative
    0

    Not easy to find the source code for.

    • SRWare Iron is Free and ProprietaryMozilla Firefox is Free and Open Source
5 of 5 Mozilla Firefox alternatives