It actually was pretty easy. All I did was install Fennec and then tweak a few settings.
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I switched the browsing protection to strict
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I installed ublock origin
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I went to about:config and enabled resist fingerprinting
I ran some fingerprinting tests and my slightly modified Fennec performs about the same as Mull
Even that warning I never really faced issues with the browser(but still a concern).
If Iceraven was something I wanted or needed I might be ok with it. As it stands I don’t see the use case for me personally.