User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0 Build ID: 20171024165158 Steps to reproduce: Go to Tools and Select Options Actual results: Firefox (56.0.2 64 bit) freezes and not response Expected results: It should be able to manage preferences and all options
Please troubleshoot with Safe Mode: https://support.mozilla.org/kb/troubleshoot-firefox-issues-using-safe-mode
Refresh Firefox solved the problem
Based on Comment 2 from the reporter, changing status to RESOLVED WORKS FOR ME. If anyone can still reproduce it on latest versions, feel free to reopen the issue and provide more information.