I am currently using LibreWolf (I am assuming that’s what you meant by librefox), and aside from getting used to a non-chromium-based browser (which is almost all of them nowadays), it’s really fine.
Besides, why wait to try it out? Get used to it before you have to.
Not visually impaired, but I thank you nevertheless.
But, yeah, this actually made me curious: image-based memes, how do visually-impaired people enjoy them? How different would it be to compared to how sighted people enjoy them?