Firefox Headless_mode page is missing

[doggy8088]

Doc link: https://playwright.dev/docs/api/class-browsertype

There is a broken link on Firefox link.

The link is point to https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Headless_mode which is not exist anymore.

[doggy8088]

The possible new link might be: https://developer.mozilla.org/en-US/docs/Web/WebDriver/Capabilities/firefoxOptions