All animations broken with horrible vertical bars.\n\nHaving this in firefox 84.0.1 in safe mode, also reset prefs.js, disabled hardware. OSX Catalina 15.7\n\n![image](https://assets.leetcode.com/users/images/c8d22500-a4f8-43fa-ba11-1ccf2aa340eb_1609801902.2189174.png)\n\nIt looks so ghastly, anyone knows what this and how to avoid?

All animations broken with horrible vertical bars.\n\nHaving this in firefox 84.0.1 in safe mode, also reset prefs.js, disabled hardware. OSX Catalina 15.7\n\n\