There are 2 failing test cases in `browser/components/extensions/test/browser/browser_ext_browserAction_popup_preload.js` for the `html:body` that are sending clicks to a `<body>` element to dismiss the pending popup using an alternative way of the popup dismissal, where the other way like `Esc` key is available, therefore these two test clicks can be excluded from the a11y_checks.
Another test cases are in `browser/components/extensions/test/browser/browser_ext_menus_capture_secondary_click.js` that are clicking on the `<menu>` parent container to confirm the click event is not going to be triggered for the attached menu items, thus these clicks are also excluded from the a11y_checks.
These actions are not expected or do not have to be done by a user of an assistive technology and we do not have to confirm the accessibility of these elements.
Thus, we are excluding these click events from accessibility checks.
Differential Revision: https://phabricator.services.mozilla.com/D193574
f1f09e1bcd