Waterfox AlternativesOnly apps categorised as Email Clients

The best Email Client alternative to Waterfox is Vivaldi, which is free. If that doesn't work for you, our users have ranked more than 50 alternatives to Waterfox, but unfortunately only two of them are Email Clients.

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Waterfox 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. These are just examples - use the filter bar below to find more specific alternatives to Waterfox.

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Waterfox alternatives page was last updated Dec 19, 2025

Vivaldi
1287 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.
190 Vivaldi alternatives
Cost / License
Free
Proprietary
Application type
Web Browser
Origin
Norway
Platforms
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Snapcraft
Android Auto
Flathub
HUAWEI AppGallery
Samsung Galaxy Store
+9
Is Vivaldi a good alternative to Waterfox?

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1comment
Vivaldi vs Waterfox Comments

Mahdy Abdelmotaleb
Negative commentJul 13, 2020
1
Vivaldi is based on Google Chromium and has a closed source GUI.
Vivaldi is Free and ProprietaryWaterfox is Free and Open Source
SeaMonkey
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
Web Browser
Origin
United States
Platforms
Mac
Windows
Linux
BSD
PortableApps.com
+3
Is SeaMonkey a good alternative to Waterfox?

2 of 2 Waterfox alternatives