Browser connected domains/Telemetry test 2025 by Sizeofcat

Web Browser telemetry - 2025 edition - sizeof(cat)
summary
Note:tested with a a clean profile,

Mozilla Firefox 29

Brave 17

Ungoogled Chromium 0

Vivaldi 11

Tor Browser 0

Opera 31

Google Chrome 25

Microsoft Edge 48

Apple Safari 6

Yandex Browser 24

Mullvad Browser 15

Librewolf 24

Arc browser 16

Kagi Orion 0

Pale Moon 0

Floorp 42

Zen browser 82

Waterfox 21

Thorium 10

Keep in mind the says that there is (a huge amount of connections for some of the browsers since it’s actually the first start after installing)

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