mirror of
https://git.sr.ht/~seirdy/seirdy.one
synced 2024-12-25 18:22:09 +00:00
24 lines
1.9 KiB
Markdown
24 lines
1.9 KiB
Markdown
---
|
|
title: "Fingerprinting and customization"
|
|
date: 2023-08-28T13:52:11-07:00
|
|
replyURI: "https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/40337#note_2936949"
|
|
replyTitle: "Wouldn't, say, installing the Dark Reader extension have much less of a privacy impact than disabling RFP altogether?"
|
|
replyType: "DiscussionForumPosting"
|
|
replyAuthor: "Allium"
|
|
replyAuthorURI: "https://gitlab.torproject.org/Allium"
|
|
syndicatedCopies:
|
|
- title: 'Tor Project GitLab'
|
|
url: 'https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/40337#note_2937536'
|
|
- title: 'The Fediverse'
|
|
url: 'https://pleroma.envs.net/notice/AZCWxOH1fC9CUnxmoi'
|
|
---
|
|
|
|
These addons work by injecting or altering stylesheets in the page, and are trivially detectable. A good rule of thumb is that if it can trigger a CSP violation in the developer console, it is trivial to detect with JavaScript.
|
|
|
|
(FWIW: I believe the Tor Browser does disable the Reporting API, so I think some JavaScript will be necessary).
|
|
|
|
On "safest" mode with remote JavaScript disabled, certain "dark mode" addons *might* be safe. I think a better long-term solution would be the ability to "freeze" a page: a button or something to prevent the current page from initiating further requests (it's already loaded), running scripts, accessing storage, etc. In this state, a user could use any addons or fingerprinting-compromising settings without risk.
|
|
|
|
A good point of comparison is Reader Mode: a user's preferred Reader Mode fonts, line-width, color scheme, etc. aren't fingerprinting vectors. It should be able to stop a site from phoning home or writing to client-side storage to allow for similar levels of customization outside Reader Mode.
|
|
|
|
Other sources of inspiration could be the expected behavior for the [`scripting: initial-only` media query](https://drafts.csswg.org/mediaqueries-5/#scripting), and Firefox's built-in "Work Offline" setting.
|