gIdentityHandler.handleMoreInfoClick(event);

document.getElementById("page-proxy-favicon").setAttribute('oncontextmenu', 'if (event.target == this && !event.ctrlKey && !event.shiftKey) {event.preventDefault(); event.stopPropagation(); gIdentityHandler.handleMoreInfoClick(event);}');

({
    init(destroyMessageName) {
        this.destroyMessageName = destroyMessageName;
        var code = this.frameScriptCode.replace(/%MSG%/g, destroyMessageName);
        this.frameScriptURL = "data:," + encodeURIComponent(code);

        messageManager.loadFrameScript(this.frameScriptURL, true);
        addDestructor(this.destroy, this);
    },
    destroy() {
        messageManager.removeDelayedFrameScript(this.frameScriptURL);
        messageManager.broadcastAsyncMessage(this.destroyMessageName);
    },
    frameScriptCode: `
    ({
        init() {
            addEventListener("dragstart", this, true);
            addMessageListener("%MSG%", this);
        },
        receiveMessage() {
            removeEventListener("dragstart", this, true);
            removeMessageListener("%MSG%", this);
        },
        handleEvent(e) {
            this[e.type](e);
        },
        dragstart(e) {
            if (
                e.target.ownerDocument.mozSyntheticDocument
                && e.target instanceof content.HTMLImageElement
                && (content.scrollMaxX || content.scrollMaxY)
                && !e.ctrlKey && !e.shiftKey
                && content.getSelection().isCollapsed
        
            ) {
                this.stopEvent(e);
                this.initScroll(e);
            }
        },
        initScroll(e) {
            this.image = e.target;
            this.x = e.clientX; this.y = e.clientY;

            this.image.style.cursor = "grab";
            setTimeout(img => img.style.cursor = "grabbing", 100, this.image);

            addEventListener("mousemove", this, true);
            addEventListener("mouseup", this, true);
            addEventListener("click", this, true);
        },
        destroyScroll() {
            if (!Components.utils.isDeadWrapper(this.image))
                this.image.style.cursor = "";

            removeEventListener("mousemove", this, true);
            removeEventListener("mouseup", this, true);
            removeEventListener("click", this, true);
        },
        mousemove(e) {
            var dx = this.x - e.clientX; this.x = e.clientX;
            var dy = this.y - e.clientY; this.y = e.clientY;
            content.scrollBy(dx, dy);
        },
        mouseup(e) {
            this.stopEvent(e);
            if (e.target != this.image) this.destroyScroll();
        },
        click(e) {
            this.stopEvent(e);
            this.destroyScroll();
        },
        stopEvent(e) {
            e.preventDefault();
            e.stopPropagation();
            e.stopImmediatePropagation();
        }
    }).init();`
}).init(`CB${_id.slice(20)}:IflnScroll:Destroy`);