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Arsenic UI (Full Black) sɣur Arsenic

A sleek, full-black Firefox theme (true black UI, OLED-friendly, open-source).

5 (1 review)
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Arsenic is a true-black, full UI theme for Firefox created by arsenobetaine.
Designed for minimalism and maximum contrast, Arsenic makes toolbars, tabs and menus pure black (#000) for a sleek look and better battery/eye comfort on OLED displays.

Highlights
  • True black UI across browser chrome (tabs, toolbar, menus)
  • OLED-friendly and great for low-light setups
  • Open source — code & issues: https://github.com/arsenobetaine/arsenic
  • License: Creative Commons Attribution 4.0.

Enjoy — and if you like it, a star on GitHub or a review on AMO helps a lot!
Rated 5 by 1 reviewer

Amḍan n yitran yettwasekles

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kuusi kuukautta sitten (3. syys 2025)
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