I’ve been back on UltimaDark development for a few days, and the new modern UI and feature improvements in the upcoming release are already significant.

I’m still working on it. I’m in a pause but next update will fix more bugs and bring new ui

https://support.mozilla.org/en-US/kb/extensions-button

A major user interface overhaul is coming soon! In the meantime, the current UI already allows you to exclude sites from being darkened. If you don’t see the extension’s button pinned in your toolbar, it might still be hidden under the puzzle piece (🧩) menu, where newly installed extensions are grouped

Each permission in UltimaDark is added only when absolutely necessary and is used in the most minimal way possible. Browsing history and cookies remains untouched. Clearing the cache is done on key moments (such as updating settings ) specifically to prevent loading unedited resources, ensuring consistent dark mode application across websites.

While UltimaDark might perform better than other tools, such as Dark Reader, on certain websites (e.g., telegraaf.nl), it’s worth noting that Dark Reader is developed by a team of over 40 developers and more than 1300 contributors, whereas UltimaDark is free and still the result of a solo effort.

Thank you for bringing this to our attention. The issue affecting these sites was caused by an update aimed at enhancing the support for more websites. It was an unintended mistake, not a fundamental bug. We’re addressing it, and a fix has been released in version 1.6.6. If you encounter any further issues, please report them here: https://github.com/ThomazPom/Moz-Ext-UltimaDark/issues