On the web, you can use an application to record a video of the bug. This is especially useful if you are running into problems that cannot be captured in an image, such as an audio problem.
To capture video of your steps, you can download a screen recording extension for you browser. Please read the descriptions and reviews carefully.
There are also downloadable applications for your Windows or Mac computer that can record video:
Record a clip and attach it to your Bug Report by clicking on "Add File" or dragging the file from your computer to the rectangle that looks like this (it's at the bottom of the Bug Report page).