The flag exists in Firefox Developer Edition but it doesn't do anything yet. You have to be on Nightly for it to have an actual effect: https://www.reddit.com/r

The flag exists in Firefox Developer Edition but it doesn't do anything yet. You have to be on Nightly for it to have an actual effect: https://www.reddit.com/r/rust/comments/6p9s24/psa_you_can_try_out_stylo_in_firefox_nightly_now/dko3ko1/ https://www.reddit.com/r/rust/comments/6p9s24/psa_you_can_tr...