Give a site a fingerprinting exception

A fingerprinting exception lets one site read one kind of detail, such as your installed fonts, while the rest of its protection stays on.

A design tool you use can’t find the fonts you installed, and you don’t want to turn off all its protection.

Steps

Open Settings › Sites.
In Your sites, select the site’s row.
In the Protections card, select the button next to Fingerprinting exceptions.
Turn on the exception the site needs.

To give an exception to a site that isn’t listed, select Add site in step 2, type the site, then select Add. The site’s page opens.

The exceptions are Canvas, Installed fonts, All speech voices, All your languages, WebGPU timestamp queries, and Standard audio hardware. Each one says what the site can then read.
An exception reaches the site from its next page load.
Exceptions sync to your other devices.
Exceptions aren’t available while the site’s protections or its fingerprinting protection are off, because the site can already read every value then.
Private windows can’t keep fingerprinting exceptions.