This problem arises because of the program files of Firefox 58 or for any other version whatsoever. You need to reinstall the browser to overcome the problem. Reinstalling will not remove your passwords, bookmarks or other user data and settings which are stored in a separate profiles folder. Go for https://www.browsertechnicalsupportnumbers.com /mozilla-firefox-support/
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1732253 Title: Firefox 58 doesn't start the second time: entity is not defined To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1732253/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs