if not updated to 57.0.2 https://support.mozilla.org/en-US/kb/update-firefox-latest-version.

Try clearing your Cache and cookies for Google then retry again.

Please let us know if this solved your issue or if need further assistance.

Problem persist after update to 57.0.2. Please help to solve this problem.

Your browser identified itself to this forum in a strange way:

Mozilla/5.0 (Windows NT 6.1; rv:57.0 () Gecko/20100101 Firefox/57.0 ( anonymized by Abelssoft 890744422

For comparison, mine (red text from https://jeffersonscher.com/res/jstest.php):

Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0

Perhaps Google Drive doesn't understand that to mean "Firefox 57" or perhaps whatever Abelssoft product you're using is sending something even stranger to Google Drive. Do you know if there is a way to set that software to simply show Google Drive Firefox's true user agent string without modifying it?