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Firefox 85 cracks down on supercookies

blog.mozilla.org

71–80 of 786 posts

Re: Firefox 85 cracks down on supercookies

#71

Can you please detect I'm using Firefox, and not show the "Download Firefox" banner on top? I'll be able to save a few pixels of vertical space.

Firefox takes privacy so seriously that they fail to detect you are on Firefox, if you are using Firefox!

But not seriously enough to remove Google Analytics from their website.

Re: Firefox 85 cracks down on supercookies

#72

Is this really important given that browser fingerprinting can almost always identify a web browser?

Absolutely it’s important - Just because one hole is still open doesn’t mean another shouldn’t be closed.

And FF and Safari should continue their work to close any fingerprinting opportunities Fingerprinting is becoming less effective over time - for example fingerprinting on iOS is pretty unsuccessful.

Re: Firefox 85 cracks down on supercookies

#73

These advertising networks are destroying web performance. Most of these "Supercookies" are optimizations to improve performance. By abusing them, advertisers have turned what should be a great performance tool into a liability. I know FF suggests this won't significantly affect most websites performance, but web advertising and trackers are already responsible for a huge chunk of performance issues already. Of cours…

A much more significant performance issue with web tracking is usually the absurd amount of JS loaded.

It's almost impressive how they manage to load so much crap. Just visit a site like mediaite.com, the list of trackers is damn long.

Re: Firefox 85 cracks down on supercookies

#74
post #31

Are there any plans for complete partitioning? I'd like to see a point where browsing on two different websites are treated as a completely different user. Embeds, cookies, cookies in embeds, etc.

I'd like to see something like the firefox container extension automatically open a new container for every unique domain name. It could get tricky for eg. federated logins, so I'm not 100% sure what the implementation would look like. But it'd be nice to have the option.

The Temporary Containers addon[1] does this. Combined with the usual Multi-Account Containers "always open this site in..." mechanism you can have some sites always open in a single container, but all other sites open in temporary containers that get deleted shortly after you close their tab.

[1] https://addons.mozilla.org/en-US/firefox/addon/temporary-con...

Re: Firefox 85 cracks down on supercookies

#75

Earlier quoted context omitted.

Read 'The age of surveillance capitalism'. Engineers should understand the business models they create.

Engineers don't respect any subject outside of STEM, education like this would fall on deaf ears.

That's not true; they respect the sciences. But only sufficiently "hard" ones like chemistry and biology.

Re: Firefox 85 cracks down on supercookies

#76
post #17

Firefox is so good. It's a continual source of amazement for me that a majority of HNers are using a browser made by the largest data gobbler in the world, instead of one that actually tries to prevent spying on users.

It's probably one of the most obscure reasons, but keep Chromium around because it's the only web browser with a JIT-backed javascript engine on ppc64le. Firefox has to run everything interpreted, which is actually fine for most sites, but bogs down on JS heavy web app type things. On a much less niche side of things, a lot of web apps like Teams, Zoom, and probably many others are only fully functional on Chromium,…

Somewhat ironically, Google Meet works very well for video streaming and desktop sharing on Firefox. So I think Firefox isn't missing anything.

Re: Firefox 85 cracks down on supercookies

#78
post #68

Per-site caching negates the principal selling point of centrally-hosted JS and resources, including fonts. The convenience remains, but all speed-related perks (due to the resources being reused from earlier visits to unrelated sites) are no more... which is actually great, because it reduces the value that unscrupulous free CDN providers can derive from their "properties". It also means that I can remove fonts.goog…

LocalCDN is an extension I would recommend, both for privacy and performance reasons.

https://www.localcdn.org/

Re: Firefox 85 cracks down on supercookies

#79

These advertising networks are destroying web performance. Most of these "Supercookies" are optimizations to improve performance. By abusing them, advertisers have turned what should be a great performance tool into a liability. I know FF suggests this won't significantly affect most websites performance, but web advertising and trackers are already responsible for a huge chunk of performance issues already. Of cours…

A much more significant performance issue with web tracking is usually the absurd amount of JS loaded. It's almost impressive how they manage to load so much crap. Just visit a site like mediaite.com, the list of trackers is damn long.

Yup.

The really frustrating thing about this bit is that because it disables optimizations, it potentially impacts sites where they don't actually use tracking.

Re: Firefox 85 cracks down on supercookies

#80
post #77

is it just me or more people switching to Firefox these days?

That's my impression too. Not surprising though - Firefox has just recently started to get good again (trackpad support, GPU rendering, privacy protections etc), while Chrome gets progressively worse.
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