I’ve just been playing around with https://browserleaks.com/fonts . It seems no web browser provides adequate protection for this method of fingerprinting – in both brave and librewolf the tool detects rather unique fonts that I have installed on my system, such as “IBM Plex” and “UD Digi Kyokasho” – almost certainly a unique fingerprint. Tor browser does slightly better as it does not divulge these “weird” fonts. However, it still reveals that the google Noto fonts are installed, which is by far not universal – on a different machine, where no Noto fonts are installed, the tool does not report them.
For extra context: I’ve tested under Linux with native tor browser and flatpak’d Brave and Librewolf.
What can we do to protect ourselves from this method of fingerprinting? And why are all of these privacy-focused browsers vulnerable to it? Is work being done to mitigate this?
A place to discuss privacy and freedom in the digital world.
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
Some Rules
- Posting a link to a website containing tracking isn’t great, if contents of the website are behind a paywall maybe copy them into the post
- Don’t promote proprietary software
- Try to keep things on topic
- If you have a question, please try searching for previous discussions, maybe it has already been answered
- Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
- Be nice :)
Related communities
Chat rooms
-
[Matrix/Element]Dead
much thanks to @gary_host_laptop for the logo design :)
- 0 users online
- 57 users / day
- 383 users / week
- 1.5K users / month
- 5.7K users / 6 months
- 1 subscriber
- 2.8K Posts
- 70.2K Comments
- Modlog
Does every Tor browser show the same fonts? That’s whats important.
Okay, I just tested Tor on windows, and it shows a bunch of microsoft fonts that my linux box doesn’t have.
But what I did notice is that the fingerprint changed on my linux box after a full restart of tor browser. So I guess their approach is to randomize fingerprints between sessions, rather then to keep everyone’s fingerprint the same?
Submit a bug report