Use of drawWindow method from CanvasRenderingContext2D is deprecated. Use tabs.captureTab extensions API instead https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/captureTab
Penggunaan metode drawWindow dari CanvasRenderingContext2D sudah usang. Gunakan API ekstensi tab.captureTab sebagai gantinya https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/captureTab