Reviews for Privacy Possum
Privacy Possum by cowlicks
Response by cowlicks
Developer response
posted 6 years agoTL;DR Panopticlick and Am I Unique use a homerolled assortment of tracking code that is impractical for commercial tracking.
I'll go into a little detail about Panopticlick to explain more. Panopticlick uses a deployment of the open source fingerprinting tool Fingerprintjs2, along with their own unique fingerprinting code.
I added some debug code and visited Panopticlick I see Privacy Possum detects the page accessing 12 API's that are marked for watching for fingerprinting. Except this is split over 3 different scripts:
https://panopticlick.eff.org/static/fp2.js
https://panopticlick.eff.org/static/fetch_whorls.js
https://panopticlick.eff.org/static/deployJava.js
Privacy watches for fingerprinting on *per script basis*, this is a reasonable assumption because, normally a websites tracking code is bundled into one place, so that the tracking info can be easily aggregated and used. I'm not aware of a real deployment where tracking is split up like this. It is practical for panopticlick (and Am I Unique) because they want to present information about your tracking independently, and manage the code to do that in a more practical way.
For a demonstration of the fingerprinting detection code, I usually point folks to:
http://valve.github.io/fingerprintjs2/
I think it is worth considering cases like Panopticlick, or Am I Unique, because they can be used to evade PP's novel detection. But I have not seen a case like this in the wild.
I'll go into a little detail about Panopticlick to explain more. Panopticlick uses a deployment of the open source fingerprinting tool Fingerprintjs2, along with their own unique fingerprinting code.
I added some debug code and visited Panopticlick I see Privacy Possum detects the page accessing 12 API's that are marked for watching for fingerprinting. Except this is split over 3 different scripts:
https://panopticlick.eff.org/static/fp2.js
https://panopticlick.eff.org/static/fetch_whorls.js
https://panopticlick.eff.org/static/deployJava.js
Privacy watches for fingerprinting on *per script basis*, this is a reasonable assumption because, normally a websites tracking code is bundled into one place, so that the tracking info can be easily aggregated and used. I'm not aware of a real deployment where tracking is split up like this. It is practical for panopticlick (and Am I Unique) because they want to present information about your tracking independently, and manage the code to do that in a more practical way.
For a demonstration of the fingerprinting detection code, I usually point folks to:
http://valve.github.io/fingerprintjs2/
I think it is worth considering cases like Panopticlick, or Am I Unique, because they can be used to evade PP's novel detection. But I have not seen a case like this in the wild.
407 reviews
- Rated 3 out of 5by Live_Hater, 3 months agoБлокирует загрузку видеопотока в плеере newplayjj, а этот плеер используют многие видеохостинги имейте ввиду.
- Rated 4 out of 5by Firefox user 13883959, 5 months agoIt has a weird problem. One iherb it blocks my wishlist (just shows an empty page). But when I disable the addon this does not happen 🤔
- Rated 5 out of 5by Firefox user 14998089, 5 months ago
- Rated 5 out of 5by Firefox user 18221463, 5 months ago
- Rated 5 out of 5by ONEEX, 6 months ago
- Rated 5 out of 5by geeknik, a year agoI am always on the lookout for tools that can help protect my privacy online. Privacy Possum is one such Firefox add-on that has made a significant impact on my browsing experience.
Privacy Possum is designed to block common commercial tracking methods by reducing and falsifying the data gathered by tracking companies. This add-on is highly effective in preventing third-party cookies, referer headers, etag tracking, and browser fingerprinting, which are all commonly used to track users across the internet.
One of the things I appreciate most about Privacy Possum is its simplicity. The add-on runs silently in the background, requiring no user intervention. It is also open-source, which means that its code is transparent and can be reviewed by anyone, ensuring that there are no hidden privacy risks.
Privacy Possum is a fantastic addition to my privacy toolkit, and I highly recommend it to anyone looking to enhance their online privacy. Its effectiveness in blocking various tracking methods, combined with its ease of use, makes it a must-have add-on for Firefox users. Give Privacy Possum a try and experience the benefits of a more private browsing experience for yourself! - Rated 5 out of 5by Billie, a year ago
- Rated 5 out of 5by Birdmachine, a year ago
- Rated 5 out of 5by hanarin, a year ago
- Rated 5 out of 5by Firefox user 13406594, a year ago
- Rated 5 out of 5by Firefox user 14944144, 2 years ago
- Rated 5 out of 5by Firefox user 14323401, 2 years ago
- Rated 5 out of 5by shrl, 2 years ago
- Rated 5 out of 5by Firefox user 17577544, 2 years ago
- Rated 5 out of 5by VNLPV, 2 years ago
- Rated 5 out of 5by Firefox user 14961228, 2 years ago
- Rated 5 out of 5by Firefox user 15553046, 2 years ago
- Rated 1 out of 5by VeeTHis, 2 years agoAs of writing this review, Privacy Possum completely breaks embedded YouTube videos by causing them to give you a playback error.
Other than breaking websites, I didn't notice any significant changes while using this. - Rated 5 out of 5by João, 2 years ago