If I understand well RFP forces light theme within websites, meaning that if I set dark theme in tor browser, the website will stay in light theme. My question is, can I use the dark theme of Tor without leaking any info or fingerprint ?
Yes. The chrome theme will not be leaked to web content (if it does that’s a bug). RFP explicitly bypass system the following
- following the built in dark or light theme
- following system theme
- following prefs such as
ui.systemUsesDarkTheme(hidden pref: 0=light, 1=dark)
- web-content prefers-color-scheme overrides
layout.css.prefers-color-scheme.content-overridewhich will be in Tor Browser’s ESR102
- everything else you can think of
So even colored theme like Firefox won’t work. That’s really cool, thanks for the answer.
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