Swell

Minimal Gecko browser (patches on Firefox ESR) with an Arc-style sidebar and fully isolated spaces (cookies, passwords, extensions, downloads) within a single window.

Facts

Developer

ivantacca

Website

ivantacca.github.io

Engine

Gecko

Derived from

Mozilla Firefox ESR

Platforms

macOSLinux

Popularity

6/100 — 31 GitHub stars

Key versions

1. Oct. 26, 2026
   v0.55.0-alphaFirst release published on GitHub. Also the latest one.

Version sources: ivantacca/swell (GitHub) · 1 releases published · Full history → · Milestones taken automatically from the releases published on GitHub.

Sources

1. https://github.com/ivantacca/swell
2. https://github.com/ivantacca/swell/releases