- Feb 25, 2017
I personally will stick with strict as it barely gives me any problems and because I think that there is a reason why Mozilla is telling us to use the strict profile in order to make dFPI work.I'm not either but I found this on Reddit https://www.reddit.com/r/firefox/comments/rp8fk7/_/hq2zdy2 Who knows what to believe on R when there are no references/documentation.
I believe if you select "Custom", Cookies -> "All 3rd party cookies" and Tracking content -> "In all windows" it is at least as strong if not more so.Website breakage could occur but I've never encountered any while blocking 3rd party cookies.
In the end I think it's 6 of one, 1/2 dozen of the other. FF strict is very good protection with recent developments.