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MultiFirefox
multifirefox · v2.3.3 • deprecated
1
6.0
Launcher utility to run multiple versions of Firefox side-by-side
brew install --cask multifirefox 3
30-day installs
9
90-day installs
100
365-day installs
Install trend
Trust Score 1/10
✗ Open source +0
✗ Active development +0
✗ Licensed +0
✗ No auto-updates +0
✗ Deprecated +0
✓ Established (>1yr) +1
✗ Low installs +0
Review
Mar 11, 2026MultiFirefox is a unique launcher utility that enables users to run multiple versions of Firefox simultaneously. It is particularly beneficial for developers and testers who need to test across different Firefox versions.
MultiFirefox allows users to launch and manage multiple versions of Firefox side-by-side.
Maturity: The project appears stable but has not been actively maintained since 2021.
Community: The app has received some positive attention on Reddit, with a notable post in r/macapps, though overall community discussion is limited.
Pros
- + Free to use
- + Supports running multiple Firefox versions simultaneously
- + Simple and effective user interface
Cons
- - No auto-update functionality
- - Limited recent community activity and updates
Community Mentions
reddit
hackernews
Positive sentiment Negative sentiment Neutral / unknown