Tokyo Night by Milav

Dark Firefox theme inspired by <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/64ccf8aad3dadf1a2d9e508e1254ac8e30ef2b455f69c32be7d4c62b5811ec40/https%3A//github.com/enkia/tokyo-night-vscode-theme" rel="nofollow">https://github.com/enkia/tokyo-night-vscode-theme</a>. Low contrast and dark colors make it great for everyday use.