UltimaDark - The Fastest Dark Mode Extension by ThomazPom

4.5 Stars out of 5

UltimaDark - The Fastest Dark Mode Extension version history - 25 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 1.6.73
Released 2 Aug 2026 - 3.41 MB
Works with firefox 115.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Older versions
Version 1.6.72
Released 1 Aug 2026 - 3.41 MB
Works with firefox 128.0 and later, android 128.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.71
Released 30 Jul 2026 - 3.41 MB
Works with firefox 128.0 and later, android 128.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.70
Released 30 Jul 2026 - 3.41 MB
Works with firefox 128.0 and later, android 128.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.69
Released 30 Jul 2026 - 3.41 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.68
Released 30 Jul 2026 - 3.41 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.67
Released 26 Jul 2026 - 3.39 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.66
Released 22 Mar 2026 - 3.39 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.65
Released 21 Mar 2026 - 3.39 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.64
Released 20 Mar 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.63
Released 20 Mar 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.62
Released 18 Mar 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.61
Released 17 Mar 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.60
Released 6 Jan 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.59
Released 6 Jan 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.58
Released 4 Jan 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.57
Released 4 Jan 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.56
Released 3 Jan 2026 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.55
Released 31 Dec 2025 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.54
Released 29 Dec 2025 - 3.38 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.53
Released 22 Dec 2025 - 3.37 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.52
Released 22 Dec 2025 - 3.37 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.51
Released 21 Dec 2025 - 3.37 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
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Version 1.6.50
Released 21 Dec 2025 - 3.37 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
Download file
Version 1.6.48
Released 20 Dec 2025 - 3.37 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public Licence 2.0
Download file

Latest version

Version 1.6.73

Older versions

Version 1.6.72

Version 1.6.71

Version 1.6.70

Version 1.6.69

Version 1.6.68

Version 1.6.67

Version 1.6.66

Version 1.6.65

Version 1.6.64

Version 1.6.63

Version 1.6.62

Version 1.6.61

Version 1.6.60

Version 1.6.59

Version 1.6.58

Version 1.6.57

Version 1.6.56

Version 1.6.55

Version 1.6.54

Version 1.6.53

Version 1.6.52

Version 1.6.51

Version 1.6.50

Version 1.6.48