We should make about:debugging accessible. This bug is a list of things we'd need to review (and possibly get info from our accessibility experts):
- Are we using images and buttons the right way?
<h1> inside sectioning elements (see the discussion in this patch, although we are using this pattern in other components as well.
If anybody finds another accessibility issue we should either fix, or check if we are doing it well, please add it as a comment.