Description of problem:
Fesco decided to include Firefox 57 Beta at Fedora 27 compose.
Version-Release number of selected component (if applicable):
Discussed during the 2017-10-23 blocker review meeting: 
The decision to delay the classification of this as a Blocker was made as we want the FESCo team to clarify their intent on what should be done with Firefox 57 in Fedora 27, given as it is unstable.
Discussed at 2017-10-26 Fedora 27 Final go/no-go meeting, acting as a blocker review meeting: https://meetbot-raw.fedoraproject.org/fedora-meeting-1/2017-10-26/f27-final-and-server-beta-go-no-go-meeting.2017-10-26-17.00.html . We are still waiting for FESCo to come to a formal conclusion here.
dnf update of f26 workstation to f27 yielded ff 57.0b9 (64 bit)
if you have updates-testing enabled of course it will, as the package is in u-t.
Discussed during the 2017-10-30 blocker review meeting: 
The decision to classify this bug as an AcceptedBlocker was made as the FESCo team agreed this was a blocker at their 2017-10-27 meeting.
firefox-57.0-0.6.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-8e364e9339
I can confirm that the Firefox 57 update does indeed...provide Firefox 57.
firefox-57.0-0.8.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-8e364e9339
firefox-57.0-0.8.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-8e364e9339
Confirmed that 57.0-0.8.fc27 is present in the RC-1.2 compose.
firefox-57.0-0.8.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.