Hello joepostma, Please see this bug report : https://bugzilla.mozilla.org/show_bug.cgi?id=1453645 If you want to, you could vote to show your interest for that bug report : https://bugzilla.mozilla.org/page.cgi?id=voting.html If you have any additional information to add, you can post a comment, but keep it to the point and concise. See the section [https://bugzilla.mozilla.org/page.cgi?id=etiquette.html Commenting, especially #4]