Update Firefox version for HTMLFormElement.requestSubmit() (#5805)
Update Firefox version for HTMLFormElement.requestSubmit() (#5805)

HTMLFormElement.requestSubmit() is available since version 75 of Firefox
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data