Is GX Theme Styles safe?

Customize Firefox’s browser theme with GX-style presets and detailed color controls.

This extension lets you apply preset GX-inspired themes and adjust browser UI colors such as tabs, toolbar, URL bar, panels, icons, and button states. It also provides controls for several font colors, including selected and unselected tabs, toolbar text, panels, New Tab text, and sidebar text. It uses theme access to change the browser appearance and storage to save settings.