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Firefox rolls out Total Cookie Protection by default to all users

blog.mozilla.org

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Re: Firefox rolls out Total Cookie Protection by default to all users

#301

Earlier quoted context omitted.

http://yourdomain.com/path/to/something?SESSION=af2828c119ae1 and yes, all URLs in every page were rewritten during page generation to include the session ID.

Didn't that break bookmarks?

Sometimes, but usually not. What it did enable was people accidentally leaking their sessions when sharing links.

Re: Firefox rolls out Total Cookie Protection by default to all users

#303
post #148

Earlier quoted context omitted.

It's really weird that they claim there privacy work started in 2015. Netscape Navigator add cross site cookie blocking at some point, and firefox has always (?) had it. The innovation here seems to be that they further partition by the URL in the address bar. It's frustrating that browsers have been fighting and losing this war for 25 years. (Presumably they still don't block browser fingerprinting, so sites will ju…

It's not possible to block browser fingerprinting since it's a range of techniques and heuristics based on numerous features. There's no "turn off fingerprinting" button you can just press.

It's not binary but it's unfair to say "it can't be done" it absolute can be made significantly better.

The strongest fingerprinting techniques use a lot of computing (e.g. font, canvas analysis) so they are expensive to use - no one wants to slow down their visitors by several seconds. The weaker fingerprint techniques can be easily patched and mocked it's just that it's a constant effort to keep up with them.

All it would take is 1 major browser to enable it by default to distrubt whole fingerprinting ecosystem to the point where it would be too expensive to effectively fingerprint people.

Re: Firefox rolls out Total Cookie Protection by default to all users

#304

Cool. Just a heads' up that I had to disable it on Zendesk and Asana so they could talk to each other - you might experience similar issues.

EDIT: Nvm, I found it. Thank you.

https://pbs.twimg.com/media/DzSc4mhX4AAi1Bz?format=png&name=...

Re: Firefox rolls out Total Cookie Protection by default to all users

#307
post #158

Earlier quoted context omitted.

You do realize acquisitions occur?

Business operation complications are not a valid reason for the violation of the rights of humans.

Cross-domain cookies are a tool that can be used for good or bad. It's a tradeoff to block them or not block them.

Re: Firefox rolls out Total Cookie Protection by default to all users

#308
post #157

Earlier quoted context omitted.

There are legit cross-domain use cases. A good example is how someone here mentioned (comment seems deleted though) account sessions being shared between Atlassian products like JIRA and BitBucket. The problem with that is domains are a poor way of representing ownership that can be trusted. If the web was rebuilt from scratch, a better approach might be to allow cookies to be shared between secure sites using the sa…

Isn't this solved with a login redirect? Just return a signed ID and set up cookies on the other end with that. Granted, it's one more redirect per domain than before per login period, but that's hardly onerous. Domains that want to collaborate together can still do so.

[deleted]

Re: Firefox rolls out Total Cookie Protection by default to all users

#309
post #146

Earlier quoted context omitted.

There are legit cross-domain use cases. A good example is how someone here mentioned (comment seems deleted though) account sessions being shared between Atlassian products like JIRA and BitBucket. The problem with that is domains are a poor way of representing ownership that can be trusted. If the web was rebuilt from scratch, a better approach might be to allow cookies to be shared between secure sites using the sa…

> allow cookies to be shared between secure sites using the same certificate Or maybe encrypting cookies using the site certificate, which would still allow cookies to be shared with domains having a different certificate, but the server needs the correct key for decryption.

[deleted]

Re: Firefox rolls out Total Cookie Protection by default to all users

#310

Why weren't separate cookie jars the default in the first place? I know that browsers other than Firefox have no real incentive to protect your privacy, but I'm wondering why cookies were designed to be shared among different pages in general

The cookie jar was already partitioned by domain. It's non-obvious that the correct design is to partition it by 2 domains (the domain in the HTTP request and the domain in the URL bar).
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