Add Decentraleyes to slighten off a bit Exit traffic and work around some CDNs blocking of Tor

For those who don't know what it does: "Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers."[1]

For example, according to W3Techs statistics, Google Hosted Libraries is used by 16.9% of all websites, that is a JavaScript content delivery network market share of 70.4%.[2] Decentraleyes works by blocking requests to that CDN and loading the Javascript libraries locally.

That way not only some sites will load slightly faster (or faster for low-bandwidth clients) due to the resources being blocked and loaded locally (which also means slightly less traffic needed for exits), but also will protect from tracking by those CDNs.[3]

This addon doesn't clash with section 2.3. of the Tor Browser Design Doc with regards to ad-blockers as it isn't one.

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[1] : https://addons.mozilla.org/en-US/firefox/addon/decentraleyes/ [2] : https://w3techs.com/technologies/overview/content_delivery/all [3] : "The paper also makes me think about exit traffic patterns, and how to better protect people who use Tor for only a short period of time: many websites pull in resources from all over, especially resources from centralized ad sites. This risk (that it greatly speeds the rate at which an adversary watching a few exit points — or heck, a few ad sites — will be able to observe a given user's exit traffic)..." (replade ad sites with "free" CDNs ;) https://blog.torproject.org/blog/improving-tors-anonymity-changing-guard-parameters [4] : https://www.torproject.org/projects/torbrowser/design/ "As a general matter, we are also generally opposed to shipping an always-on Ad blocker with Tor Browser."

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Username: imageverif