@-moz-document url-prefix("chrome:") {
    /* Firefox URL Bar Loading Animation */
    :root {
        --w-urlbar-bg_color: #0066ff66, #00ffff66, #0066ff66;
    }

    #urlbar:not([breakout-extend="true"]) {
    .urlbar-input-container::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, var(--w-urlbar-bg_color));
        background-size: 200% 100%;
        animation: urlbar-loading-gradient 1s linear reverse infinite;
        animation-play-state: paused;
        opacity: 0;
        transition: opacity 0.25s;
        z-index: -1;
    }
    }

    :has(#reload-button[displaystop="true"]) .urlbar-input-container::before {
        animation-play-state: running;
        opacity: 1;
    }

    @keyframes urlbar-loading-gradient {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 200% 50%; }
    }
}