Thank you for your report ! One year of updates since your review might be worth a retry !

UltimaDark does not aim to compare itself to Dark Reader or any other tool. Please keep in mind that UltimaDark is a young, free project, and by nature, it will never be “finished.” Bugs are inevitable since fixing an issue for one site may break functionality for others, especially with only one developer working on it.

The extension is still experimental and constantly evolving. To report bugs, share ideas, or track progress, the project’s GitHub page is available. Anyone who wants to be part of the growing community around this project is warmly welcome. Thank you for your patience and support!