firefox@esr ☆
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Description:
Web browser
Type: Cask  |  Latest Version: 140.9.0@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  @firefox  |  formulae.brew.sh
Category: Networking
Tags: browser web esr mozilla internet
Install: brew install --cask firefox@esr
About:
Mozilla Firefox Extended Support Release (ESR) is a version of Firefox designed for organizations that need extended support for deployments. It provides a secure and stable browsing experience with features like tracking protection and enhanced privacy controls, receiving security updates without major interface changes for up to a year.
Key Features:
  • Extended Support Release (ESR) for stability
  • Enhanced Tracking Protection
  • Enterprise-grade security and policy support
  • Cross-platform compatibility
Use Cases:
  • Enterprise environment deployment
  • Users requiring long-term browser stability
Alternatives:
  • google-chrome – Standard release cycle vs. ESR stability
  • firefox – Standard release with latest features vs. ESR stability
Version History
Detected Version Rev Change Commit
Mar 24, 2026 1:09pm 140.9.0 0 VERSION_BUMP c631ec92
Feb 24, 2026 4:13pm 140.8.0 0 VERSION_BUMP 97da43e6
Feb 16, 2026 4:17pm 140.7.1 0 VERSION_BUMP a37bb8db
Jan 13, 2026 4:19pm 140.7.0 0 VERSION_BUMP fee2ba96
Sep 16, 2025 1:41pm 140.3.0 0 VERSION_BUMP 90721b60
Sep 15, 2025 11:39am 128.14.0 0 VERSION_BUMP 85ff4843
Aug 19, 2025 1:28pm 128.14.0 0 VERSION_BUMP 157528d7
Aug 6, 2024 4:06pm 115.14.0 0 VERSION_BUMP 255930f1
Jul 9, 2024 1:02pm 115.13.0 0 VERSION_BUMP 96eaa8ab
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