Waterfox is a web browser focused on security and speed. Although this open-source browser is based on Mozilla Firefox, it is a lighter and more agile version. It has a light theme (Floe) and a dark theme (Abyss). Its development began in March 2011 and it was one of the first web browsers designed to run exclusively on 64-bit operating systems— thus eliminating unnecessary 32-bit code and resulting in a lighter version.
Although most web browsers use engines such as Blink or WebKit, Waterfox works with Gecko. Being based on Firefox, Waterfox is naturally compatible with all Firefox extensions.
In 2021, the browser was split into two versions: Classic and Current. The Classic version was intended to stick with familiar stable technology. However, due to rapid web development, keeping compatibility with most services became very difficult. Therefore, the version that can be downloaded from Uptodown is the Current one, which is more modern and supports all the changes on the web, without compromising speed, privacy or usability.
If you are looking for a lightweight, fast and secure web browser compatible with all Firefox extensions, downloading Waterfox is an excellent choice.
Frequent questions
Is Waterfox better than Firefox?
Waterfox is a lite web browser based on Firefox. It is lighter and faster than Firefox, as well as compatible with its extensions. However, it takes a while for the latest Firefox updates to reach Waterfox.
Is it worth using Waterfox?
Waterfox is developed with privacy and speed as its priority. It also respects the user's privacy, not collecting any data or usage statistics.
Who owns Waterfox?
The current owner of Waterfox is System1, a British company, which bought it in December 2019. The browser was launched on March 27, 2011 by Alex Kontos, its creator and current developer.
Is Waterfox safe to use?
Using Waterfox is safer than using one of the more popular web browsers, as it does not collect usage data and is more respectful of user privacy.
3 reviews 
Comments
Very good!!!!
Seems like it might be a little faster but the description says you can substitute it and use all your Firefox addons in this browser but you can't! Half my addons including themes won't work. You can...
nice look and speed doest hang like firefox good to use