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EFF "cover your tracks" browser privacy test
(lemmy.dbzer0.com)
https://coveryourtracks.eff.org/ Wanted to share this awesome tool to test your browser, also please do share your results in the comments.
Be aware that any sites using HTML5 Canvas will probably be broken now. It breaks some other niche things too that may not be obviously related, so just keep that in mind if any site starts acting up.