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 1.6.27
Released Oct 25, 2025 - 3.36 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download Firefox and get the extension
Download file
Older versions
Version 1.6.24
Released Aug 23, 2025 - 1.13 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.23
Released Aug 22, 2025 - 1.13 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.22
Released Aug 20, 2025 - 1.13 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.21
Released Aug 18, 2025 - 1.13 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.20
Released Aug 16, 2025 - 1.13 MB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.17
Released Aug 10, 2025 - 770.79 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.16
Released Aug 10, 2025 - 770.61 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.15
Released Aug 9, 2025 - 770.49 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.14
Released Aug 7, 2025 - 769.82 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.13
Released Aug 6, 2025 - 769.32 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.12
Released Dec 29, 2024 - 160.3 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.11
Released Dec 15, 2024 - 160.2 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.10
Released Dec 12, 2024 - 160.09 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.9
Released Dec 12, 2024 - 160.13 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.8
Released Nov 30, 2024 - 159.95 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.7
Released Nov 28, 2024 - 159.9 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.6
Released Nov 27, 2024 - 159.7 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.5
Released Nov 25, 2024 - 159.66 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.4
Released Nov 22, 2024 - 159.1 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.3
Released Nov 22, 2024 - 159.08 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.2
Released Nov 18, 2024 - 158.96 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.1
Released Nov 12, 2024 - 158.85 KB
Works with firefox 128.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.6.0
Released Nov 10, 2024 - 158.79 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file
Version 1.5.77
Released Oct 28, 2024 - 171.56 KB
Works with firefox 79.0 and later, android 120.0 and later
Source code released under Mozilla Public License 2.0
Download file

Latest version

Version 1.6.27

Older versions

Version 1.6.24

Version 1.6.23

Version 1.6.22

Version 1.6.21

Version 1.6.20

Version 1.6.17

Version 1.6.16

Version 1.6.15

Version 1.6.14

Version 1.6.13

Version 1.6.12

Version 1.6.11

Version 1.6.10

Version 1.6.9

Version 1.6.8

Version 1.6.7

Version 1.6.6

Version 1.6.5

Version 1.6.4

Version 1.6.3

Version 1.6.2

Version 1.6.1

Version 1.6.0

Version 1.5.77