FireCSS by derivia

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FireCSS version history - 5 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 1.3.3
Released Aug 24, 2025 - 29.46 KB
Works with firefox 58.0 and later
Hi! This release has a few fixes and enhancements:
- Remember text box content when closing and reopening the edit panel.
- Better way of applying CSS while using !important tags.
- Fixed preview to clean the older version of CSS applied.
- Checkbox for "recursive" set to marked as default.
Source code released under MIT License
Download Firefox and get the extension
Download file
Older versions
Version 1.3.1
Released Jan 8, 2025 - 29.13 KB
Works with firefox 58.0 and later
New icons!
Source code released under MIT License
Download file
Version 1.3.0
Released Jan 6, 2025 - 51.33 KB
Works with firefox 58.0 and later
CSS code area better editing!
Added auto-indentation and braces workarounds for better user experience.

Better message handling for events.
Source code released under MIT License
Download file
Version 1.2.1
Released Jan 6, 2025 - 50.31 KB
Works with firefox 58.0 and later
CSS loading optimization tricks & extension html styling for better UX.
Source code released under MIT License
Download file
Version 1.1.0
Released Jan 3, 2025 - 46.58 KB
Works with firefox 58.0 and later
Added button for removing styles inside the "styles page".
Source code released under MIT License
Download file

Latest version