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marumari

86 karma · joined August 25, 2016

Security Engineer.

[ my public key: https://keybase.io/april; my proof: https://keybase.io/april/sigs/kNfkel8VNf5CwWpxGsWj4xZMhGcxTagssfbA0FxUpqw ]

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marumari··on Handling cookies is a minefield
Safari is a lot more strict about cookies than Chromium or Firefox, it will straight up drop or ignore (or, occasionally, truncate) cookies that the other two will happily accept.

I had hoped when writing this article that Google would look at Safari and see that it was always strict about feel comfortable about changing to be the same. But doing so now would unfortunately break too many things for too many users.

marumari··on Handling cookies is a minefield
Thanks for pointing that out -- I've updated the article and given you credit down at the bottom. Let me know if you'd prefer something other than "kibwen."
marumari··on The AT protocol is the most obtuse crock of shit
An unspecified "implementation detail" is essentially another way of saying that it doesn't work.

I've ported my account on ActivityPub a couple time, and it's a horrendous experience -- not only do I lose all my posts and have to manually move a ton of bits, but the server you port from continues to believe you have an account and doesn't like to show you direct links on there anymore.

The latter could probably be easily solved, the former needs to be built into the spec or it will continue to be broken.

marumari··on Platform certificates used to sign malware
Platform keys are only required to be v2, as far as my understanding goes.
marumari··on Ask HN: How's the job hunt going? (For those laid off)
this is a terrible time of year for interviewing, most places won’t be adding headcount until january.
marumari··on Firefox usage is down despite Mozilla's top exec pay going up
I guess we just have different definitions of what "broken" means, since disconnecting Gecko sounds fairly broken to me. :)
marumari··on Firefox usage is down despite Mozilla's top exec pay going up
Because huge chunks of are broken in the new browser engine, and could leave your browser in an unrecoverable state.
marumari··on Mozilla Server Side TLS – Recommended Configurations
X25519 is the mechanism for using Curve25519. Software that uses OpenSSL all uses “X25519” and so it would be needlessly confusing to use other verbiage despite being more technically correct.
marumari··on It’s time to give Firefox another chance
Both uBlock Origin and Tree Style Tabs (as well as Tab Center Redux, which I prefer) are already compatible with Firefox 57.
marumari··on It’s time to give Firefox another chance
You can do the same in Firefox. It's under Tools -> Web Developer -> Browser Toolbox.
marumari··on Studying how Firefox can collect additional data in a privacy-preserving way
Connections to the Mozilla Telemetry server are done over HTTPS, so all an interceptor would know is that you are sending Telemetry and not what that Telemetry is.
marumari··on “AV is my single biggest impediment to shipping a secure browser.”
> If AV was so vulnerable, we'd see nothing but exploits in the wild going after AV. Yet we aren't seeing that anywhere.

That's because the Linux kernel, Chrome, Firefox, etc. are installed on hundred of millions or billions of devices. Any given piece of anti-virus is orders of magnitude less popular. Further, the route to exploitation is often more circuitous with AV

Overall, that adds up to significantly less exploitation seen in the wild.

marumari··on Observatory by Mozilla – automated website security testing tool
On the plus side, there are sites doing really well, like GitHub (A+), HackerOne (A+), and Twitter (A). Even Facebook is doing pretty well, with a B. Hopefully sites like the Observatory help sites do better.

We're working really hard on getting mozilla.org to the point where it also gets an A+.

marumari··on Observatory by Mozilla – automated website security testing tool
The nice thing is that most of the security measures -- aside from Subresource Integrity -- can be done without changing any of the actual content.
marumari··on Observatory by Mozilla – automated website security testing tool
It also has an invalid website certificate. Kind of a shame that it's so neglected, but it's a pretty good example of what happens to sites when they're allowed to sit for too long.
marumari··on Observatory by Mozilla – automated website security testing tool
I'm the primary developer of the scanner and website, and would be happy to answer anybody's questions, should they have any. :)