Can Anyone Recommend a Sensory-Accessible Browser?

I have sensory issues, chronic migraines, coordination issues, and other health issues. Strobe lights, turn signals, and other flashing lights are painful, and often dazzle me, disorient me, or trigger my migraines. I can’t use phones, and I haven't been able to register for relay services, there are identification barriers, so I need to be able to use the web to schedule things, to contact doctors, etc.

I use a Mac, because I had nasty hardware accessibility and driver issues using Linux on Windows-oriented machines. I keep triggering my migraines when trying new browsers. So far I've tried Safari, Firefox, Safari again, Sleipnir, Opera, and Vivaldi.

I think Links [not Lynx!] might be worth trying, but I am not sure how to install it. I think I would need to compile everything.

I’ve been using Firefox because:

(a) It allows me to whitelist cookies from specific sites, so it doesn’t require me to turn the damn things on and off all the time, unless I’m trying to use Google or some other broken site which requires third-party cookies, those still require me to turn the damn things on and off all the time.

(b) It has a number of accessibility extensions to block gifs, block specific kinds of pain/animation, and, if need be, block javascript.

I’m having trouble because:

(a) It doesn’t have enough accessibility extensions to block enough kinds of pain/animation.

(b) FLASHING MENUS!!!

(c ) And other broken menus.