I am multiply disabled. I have a strobe sensitivity, among other sensory processing issues. I don't get seizures, but I do get migraines, sensory scrambling, and once, vomiting, from flashing, blinking, zooming, jitter, carousel, and dangerous safety signals. I don't have accessible public transportation, so I need to be able to use the web. I have been using Firefox. I've got dozens of accessibility fixes, and could use better accessibility fixes, with better coverage. Unfortnately, Firefox 57+ breaks many of these accessibility fixes. Firefox 52 esr continues to support these for the time being, but doesn't support migration tools *if* and when 57+ gets adequate accessibility tools. I can't find out whether my extensions and user styles are compatible with the current versions, and I can't find whether there are replacements that are compatible. I've reported the bug, and it won't be fixed: https://bugzilla.mozilla.org/show_bug.cgi?id=1422910#c3 I can't switch to Safari, Opera, or Sleipnir; they punch users with built-in animation. I can't even try Chrome, the download site punches users with its animation. I would like to be able to continue using Firefox, but am also considering either Basilisk or Waterfox when 52 esr runs out.