firefox@developer-edition ☆
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Description:
Web browser
Type: Cask  |  Latest Version: 151.0b10@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  @FirefoxDevTools  |  formulae.brew.sh
Category: Developer tools
Tags: browser developer-tools web-development testing firefox
Install: brew install --cask firefox@developer-edition
About:
Firefox Developer Edition is a specialized version of the Firefox browser tailored for web developers and testers. It includes powerful development tools by default, such as a grid inspector, debugger, and performance analyzer. This edition allows users to test sites on a separate profile and offers advanced platform support for the latest web standards.
Key Features:
  • Built-in advanced developer tools (CSS Grid, Debugger, Network Monitor)
  • Separate profile from standard Firefox for safe testing
  • Pre-release updates with the latest platform features
  • Support for WebExtensions and modern web APIs
Use Cases:
  • Debugging and inspecting web applications
  • Testing site compatibility with upcoming browser versions
  • Developing and testing browser extensions
Alternatives:
  • Google Chrome – Chrome DevTools is widely used, but Firefox offers unique features like CSS Grid visualization and enhanced privacy controls.
  • Safari Technology Preview – Essential for macOS and iOS development, but limited to Apple ecosystems.
Version History
Detected Version Rev Change Commit
May 13, 2026 4:37pm 151.0b10 0 VERSION_BUMP ee05c467
May 11, 2026 4:57pm 151.0b9 0 VERSION_BUMP 85d93885
May 8, 2026 4:15pm 151.0b8 0 VERSION_BUMP 452fe182
May 6, 2026 7:28pm 151.0b7 0 VERSION_BUMP d5547679
May 4, 2026 4:29pm 151.0b6 0 VERSION_BUMP a65ffa9f
May 1, 2026 4:05pm 151.0b5 0 VERSION_BUMP e00ec556
Apr 29, 2026 4:41pm 151.0b4 0 VERSION_BUMP bdb0619a
Apr 27, 2026 7:15pm 151.0b3 0 VERSION_BUMP 5ef0c3c8
Apr 24, 2026 7:03pm 151.0b2 0 VERSION_BUMP 197f8a05
Apr 23, 2026 1:27am 151.0b1 0 VERSION_BUMP 389fd5e4
Apr 15, 2026 4:11pm 150.0b10 0 VERSION_BUMP 57f473f1
Apr 13, 2026 4:44pm 150.0b9 0 VERSION_BUMP 31d25932
Apr 10, 2026 4:06pm 150.0b8 0 VERSION_BUMP b4a8f2ce
Apr 8, 2026 4:20pm 150.0b7 0 VERSION_BUMP 4dc9d4d8
Apr 6, 2026 4:05pm 150.0b6 0 VERSION_BUMP e88887e6
Apr 3, 2026 3:59pm 150.0b5 0 VERSION_BUMP bef6ec0d
Apr 1, 2026 4:19pm 150.0b4 0 VERSION_BUMP 984528e8
Mar 30, 2026 4:18pm 150.0b3 0 VERSION_BUMP 7995996d
Mar 27, 2026 4:01pm 150.0b2 0 VERSION_BUMP 8e53d298
Mar 25, 2026 7:03pm 150.0b1 0 VERSION_BUMP 52fa6903
Mar 18, 2026 4:15pm 149.0b10 0 VERSION_BUMP 14c56d50
Mar 16, 2026 7:04pm 149.0b9 0 VERSION_BUMP 4ec6cca7
Mar 13, 2026 7:00pm 149.0b8 0 VERSION_BUMP 3672f433
Mar 11, 2026 7:00pm 149.0b7 0 VERSION_BUMP 95629480
Mar 9, 2026 7:02pm 149.0b6 0 VERSION_BUMP f7ab78d6
Mar 6, 2026 7:01pm 149.0b5 0 VERSION_BUMP accbd194
Mar 4, 2026 3:58pm 149.0b4 0 VERSION_BUMP 48e09d1a
Mar 2, 2026 7:04pm 149.0b3 0 VERSION_BUMP e72022be
Feb 27, 2026 3:56pm 149.0b2 0 VERSION_BUMP 8947f62b
Feb 25, 2026 7:03pm 149.0b1 0 VERSION_BUMP e028c14c
Feb 13, 2026 10:01pm 148.0b15 0 VERSION_BUMP 26606aeb
Feb 11, 2026 7:03pm 148.0b14 0 VERSION_BUMP 98b4be74
Feb 9, 2026 4:03pm 148.0b13 0 VERSION_BUMP 77959895
Feb 6, 2026 7:03pm 148.0b12 0 VERSION_BUMP 6e56b39b
Feb 4, 2026 7:07pm 148.0b11 0 VERSION_BUMP f3c7223a
Feb 2, 2026 7:04pm 148.0b10 0 VERSION_BUMP 5657d081
Jan 30, 2026 7:00pm 148.0b9 0 VERSION_BUMP 16115d33
Jan 28, 2026 4:04pm 148.0b8 0 VERSION_BUMP 715239ec
Jan 26, 2026 7:11pm 148.0b7 0 VERSION_BUMP 8ead33f0
Jan 23, 2026 4:09pm 148.0b6 0 VERSION_BUMP 90a40807
Jan 21, 2026 4:15pm 148.0b5 0 VERSION_BUMP efe57e7e
Jan 19, 2026 4:13pm 148.0b4 0 VERSION_BUMP d16c9d7f
Jan 16, 2026 7:15pm 148.0b3 0 VERSION_BUMP 4fe9d266
Jan 14, 2026 7:03pm 148.0b2 0 VERSION_BUMP dd13d61a
Jan 13, 2026 1:13pm 148.0b1 0 VERSION_BUMP 434f7f5c
Dec 31, 2025 3:54pm 147.0b9 0 VERSION_BUMP 4b6671af
Dec 29, 2025 7:15pm 147.0b8 0 VERSION_BUMP 57bc2183
Dec 22, 2025 9:54pm 147.0b6 0 VERSION_BUMP b297d907
Dec 17, 2025 4:14pm 147.0b5 0 VERSION_BUMP 2909b8ee
Sep 19, 2025 7:15pm 144.0b3 0 VERSION_BUMP 2ea66370
Sep 17, 2025 7:17pm 144.0b2 0 VERSION_BUMP 8b15ce2a
Sep 16, 2025 1:32pm 144.0b1 0 VERSION_BUMP 7cd9f121
Sep 15, 2025 11:39am 143.0b9 0 VERSION_BUMP c43bba11
Sep 5, 2025 7:31pm 143.0b9 0 VERSION_BUMP 931362d8
Sep 1, 2025 7:12pm 143.0b7 0 VERSION_BUMP 0f4d8e2b
Aug 29, 2025 7:15pm 143.0b6 0 VERSION_BUMP 944ef830
Aug 27, 2025 7:12pm 143.0b5 0 VERSION_BUMP 6d33706a
Aug 25, 2025 7:07pm 143.0b4 0 VERSION_BUMP 69eb6af4
Aug 22, 2025 7:13pm 143.0b3 0 VERSION_BUMP c677e73f
Aug 20, 2025 7:14pm 143.0b2 0 VERSION_BUMP 319d1cfc
Aug 19, 2025 4:12pm 143.0b1 0 VERSION_BUMP 5c005c0a
Aug 8, 2025 7:09pm 142.0b9 0 VERSION_BUMP 2d0317a7
Aug 6, 2025 7:16pm 142.0b8 0 VERSION_BUMP e970c0cc
Aug 4, 2025 7:04pm 142.0b7 0 VERSION_BUMP 3cdbadc2
Aug 1, 2025 9:59pm 142.0b6 0 VERSION_BUMP ff82752c
Jul 30, 2025 7:09pm 142.0b5 0 VERSION_BUMP 7d283948
Aug 12, 2024 6:52pm 130.0b4 0 VERSION_BUMP 865733d7
Aug 7, 2024 6:48pm 130.0b2 0 VERSION_BUMP 6757dd3d
Aug 6, 2024 3:56pm 130.0b1 0 VERSION_BUMP b55b3172
Jul 26, 2024 6:46pm 129.0b9 0 VERSION_BUMP 40f8837c
Jul 24, 2024 6:48pm 129.0b8 0 VERSION_BUMP 7f114db9
Jul 22, 2024 6:50pm 129.0b7 0 VERSION_BUMP 6a561bf3
Jul 12, 2024 6:49pm 129.0b3 0 VERSION_BUMP c3fc1cac
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Jul 9, 2024 1:54pm 129.0b1 0 VERSION_BUMP 068dd4ab
Jun 29, 2024 12:08pm 128.0b9 0 VERSION_BUMP fd27527d
Jun 28, 2024 7:46pm 128.0b9 0 VERSION_BUMP f8709e53
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