[Jonnax]

I can't remember which but either Firefox or Chrome only send a standard list of fonts.

[systoll]

Safari does that.

Firefox has an about:config preference that would let you set up a font whitelist yourself, but it doesn’t have a standard set.

[cpeterso]

Firefox's preference is "font.system.whitelist". You can specify a list of which fonts are exposed to web content (such as the default set shipped with your OS). The preference is used by the Tor browser.

https://bugzilla.mozilla.org/show_bug.cgi?id=1121643

Does Safari actually do something similar? On my Mac, amiunique.org reports 344 fonts in Safari, 331 in Firefox (not using "font.system.whitelist"), and 309 in Chrome.

[hmexx]

Doesn't seem to be the case. I tried both browsers and got the same result, i.e. 180+ fonts sent (<0.01% match)