Give this a try please : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Please Do the Mac Equivalent Note: your Firefox Profile is saved. But you should make a back up before you do :

• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Reinstall with Current Release Firefox 57.0.3 with a Full Version Installer

• https://www.mozilla.org/firefox/all/

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

Please Do the Mac Equivalent

In Firefox 56+ the "Warn me when web sites try to redirect or reload the page" setting can no longer be found in Options/Preferences.

You can modify this pref on the about:config page to enable or disable this feature

• http://kb.mozillazine.org/accessibility.blockautorefresh

The "Warn me when web sites try to redirect or reload the page" warning is meant as an accessibility feature so people with disabilities or people who use screen readers do not get confused and isn't meant as a safety protection to stop redirecting.

• http://kb.mozillazine.org/Accessibility_features_of_Firefox

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

• http://kb.mozillazine.org/about:config

This works for most pages, apparently. FB is glitching, but it looks more like a FB problem to me. Thanks.