Open Source Waterfox AlternativesWeb Browsers and other similar apps like Waterfox

The best open source alternative to Waterfox is Mozilla Firefox. If that doesn't suit you, our users have ranked more than 100 alternatives to Waterfox and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Waterfox are Zen Browser, Brave, LibreWolf and Helium Browser.

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Most Waterfox alternatives are Web Browsers, but you can also narrow the list to Ad Blockers or Email Clients. Another popular filter is iPhone.

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Waterfox alternatives page was last updated Sep 29, 2026

Mozilla Firefox
7729 likes
Web browser by Mozilla with Gecko and WebKit engines. Offers tabbed browsing, HTML add-ons, Enhanced Tracking Protection, cross-device syncing, and privacy customization. Includes tools for developers and a 'Facebook Container' extension.
270 Mozilla Firefox alternatives
Cost / License
Free
Open Source
Application type
Web Browser
Origin
United States
Platforms
Mac
Windows
Linux
Android
iPhone
Android Tablet
BSD
HUAWEI AppGallery
iPad
AppImageHub
Snapcraft
Linux Mobile
Flathub
Samsung Galaxy Store
PortableApps.com
Haiku
Flatpak
Homebrew
Chocolatey
Gecko
F-Droid
United States
+8
Good alternative?Is Mozilla Firefox a good alternative to Waterfox?

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2comments
Mozilla Firefox vs Waterfox Comments
Comment by Farrukh · Jun 28, 2026
Waterfox is using FireFox engine. But it is more customizable than FireFox and it is not as bloated as FireFox is. I found it better than Firefox.
Positive comment by Guest · Aug 15, 2019
Firefox got better with performance improvement. But still no translation engine built-in and in compact able sites are my only concern with it. Memory footprint is almost the same on 64bit version.
2 of 2 comments
Mozilla Firefox is Free and Open SourceWaterfox is also Free and Open Source
Mozilla Firefox is Security-focusedWaterfox is not according to our users
Zen Browser
386 likes
Experience a privacy-focused, open-source browser rich with features like vertical tabs, Split View, Zen Glance, and extensive security protocols. Built on Firefox, it's currently in beta, emphasizing privacy and adaptability, with future plans for horizontal tabs.
122 Zen Browser alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application type
Web Browser
Origin
Spain
EU
Platforms
Windows
Mac
Linux
Flathub
Flatpak
AppImage
Spain
EU
+4
Good alternative?Is Zen Browser a good alternative to Waterfox?
Brave
1320 likes
Fast, secure browser integrating ad and tracker blockage, privacy features, and VPN. Offers seamless performance with data and battery optimization, faster loads by blocking pop-ups and ads. Safeguards user privacy with tracking protections and built-in brave search.
277 Brave alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application typeApplication types
Web Browser
Ad Blocker
Origin
United States
Platforms
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Snapcraft
Epic Games Store
Flathub
Samsung Galaxy Store
F-Droid
Homebrew
Chocolatey
United States
+7
Good alternative?Is Brave a good alternative to Waterfox?

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1comment
Brave vs Waterfox Comments
Comment by henryhunt382 · Sep 13, 2021
I would love to get Brave, but the only reason I will not let this thing on my computer, is because of the fact it is apart of the Chromium Project. However, I'm not gonna make this a negative comment because it is actually very fast, and is a decent browser
1 of 1 comments
Brave is Free and Open SourceWaterfox is also Free and Open Source
Brave is Security-focusedWaterfox is not according to our users
LibreWolf
404 likes
LibreWolf is a community-maintained, privacy and performance-enhanced browser forked from Firefox, independent of Mozilla. It uses over 500 settings to limit telemetry, offers an Extensions Firewall, supports all major systems, and is developed free from corporate influence.
109 LibreWolf alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application type
Web Browser
Origin
International
Platforms
Mac
Windows
Linux
AppImageHub
Linux Mint
Arch Linux
Gentoo
Flathub
Fedora
Ubuntu
Debian
Homebrew
Chocolatey
OpenBSD
Global
Good alternative?Is LibreWolf a good alternative to Waterfox?
Helium Browser
139 likes
Chromium browser with open-source ad, tracker, and cryptominer blocking by default, zero tracking, customizable privacy controls, proxy-anonymized extension downloads, split view, and efficient, unobtrusive interface for full extension compatibility.
80 Helium Browser alternatives
Cost / License
Free
Open Source (GPL-3.0)
Application type
Web Browser
Origin
United States
Platforms
Mac
Windows
Linux
United States
Good alternative?Is Helium Browser a good alternative to Waterfox?
Chromium
1156 likes
Open-source browser project offering strong security, fast performance, and stability with broad support for Windows, macOS, Linux, and Android, extensive customization, frequent security updates, minimal default tracking, and foundation for multiple browsers.
210 Chromium alternatives
Cost / License
Free
Open Source
Application type
Web Browser
Origin
United States
Platforms
Mac
Windows
Linux
Android
BSD
TrueOS
Xfce
Flathub
Snapcraft
United States
Good alternative?Is Chromium a good alternative to Waterfox?

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2comments
Chromium vs Waterfox Comments
Negative comment by nsde · Oct 11, 2022
Chromium open source, but based on Google's web engine.
Comment by henryhunt382 · Sep 13, 2021
If you want just a little bit more privacy, I recommend getting Ungoogled Chromium
2 of 2 comments
Chromium is Free and Open SourceWaterfox is also Free and Open Source
Mullvad Browser
180 likes
The Mullvad Browser is a privacy-focused web browser developed in a collaboration between Mullvad VPN and the Tor Project. It’s designed to minimize tracking and fingerprinting. You could say it’s a Tor Browser to use without the Tor Network.
112 Mullvad Browser alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application typeApplication types
Web Browser
Ad Blocker
Origin
Sweden
EU
Platforms
Mac
Windows
Linux
Flathub
Flatpak
Sweden
EU
Good alternative?Is Mullvad Browser a good alternative to Waterfox?
Floorp
156 likes
Open-source browser based on Firefox, combining advanced privacy and tracking protection with a Chromium-inspired interface, cross-platform support, customization options, compatibility with Firefox extensions, regular updates, efficient performance, and multilingual support.
153 Floorp alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application type
Web Browser
Origin
Japan
Platforms
Mac
Windows
Linux
Snapcraft
Flathub
Flatpak
Haiku
Japan
+1
Good alternative?Is Floorp a good alternative to Waterfox?
ungoogled-chromium
276 likes
Open-source web browser eliminates Google integration, disables background communications, strips non-free binaries, and includes privacy-focused patches and scripts for full transparency, control, and compatibility with Chromium extensions across major platforms.
217 ungoogled-chromium alternatives
Cost / License
Free
Open Source (BSD-3-Clause)
Application type
Web Browser
Origin
International
Platforms
Mac
Windows
Linux
Flathub
Global
+1
Good alternative?Is ungoogled-chromium a good alternative to Waterfox?

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1comment
ungoogled-chromium vs Waterfox Comments
Positive comment by nsde · Oct 11, 2022
A fork of Chromium with less bloat
1 of 1 comments
ungoogled-chromium is Free and Open SourceWaterfox is also Free and Open Source
ungoogled-chromium is Security-focusedWaterfox is not according to our users
IronFox
71 likes
IronFox is a fork of DivestOS's Mull Browser based on Firefox. Our goal is to continue the legacy of Mull to provide a secure, hardened and privacy-oriented browser for daily use.
89 IronFox alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application type
Web Browser
Origin
International
Platforms
Android
Android Tablet
F-Droid
Global
Good alternative?Is IronFox a good alternative to Waterfox?
Fennec F-Droid
112 likes
Browser using the Gecko layout engine to render web pages, which implements current and anticipated web standards.
212 Fennec F-Droid alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application type
Web Browser
Origin
International
Platforms
Android
F-Droid
OpenAPK
Global
Good alternative?Is Fennec F-Droid a good alternative to Waterfox?
Cromite
89 likes
Cromite is a Chromium fork focusing on privacy, featuring built-in ad-blocking, user agent customization for privacy, DNS adjustments for security, and anti-fingerprinting measures to ensure user safety throughout browsing sessions.
54 Cromite alternatives
Cost / License
Free
Open Source (GPL-3.0)
Application typeApplication types
Web Browser
Ad Blocker
Origin
International
Platforms
Windows
Linux
Android
Android Tablet
F-Droid
Global
Good alternative?Is Cromite a good alternative to Waterfox?

12 of 69 Waterfox alternatives

Open Source Waterfox AlternativesWeb Browsers and other similar apps like Waterfox

Alternatives list

Mozilla Firefox

Cost / License

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Mozilla Firefox vs Waterfox Comments

Zen Browser

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Brave

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Brave vs Waterfox Comments

LibreWolf

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Helium Browser

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Chromium

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Chromium vs Waterfox Comments

Mullvad Browser

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Floorp

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ungoogled-chromium

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ungoogled-chromium vs Waterfox Comments

IronFox

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Fennec F-Droid

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Cromite

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