Hacker News Reader

muizelaaron Payments Canada announces launch of Canada's Real-Time Rail (RTR) payment system

Real-time Rail is for financial institutions to settle transactions not for direct consumer use.

muizelaaron Expericencing an issue in Gmail where emails do not delete in Firefox

Here's where we're tracking this problem: https://bugzilla.mozilla.org/show_bug.cgi?id=2078818

We've reached out to Google about it.

muizelaaron Why tiny JPEGs look different in Chrome

The work for decompressing at a lower scale in Firefox is happening here: https://bugzilla.mozilla.org/show_bug.cgi?id=2033250

muizelaaron Chrome is looking to permanently drop MV2 extension

In the hamburger menu

muizelaaron The iPhone explains 33–52% of fertility decline among women aged 15–44

"The fertility drop is concentrated among young populations and largely operates through declines in unintended births (Buckles et al., 2025), suggesting the operative margin may be less about the cost of raising a child and more about whether the relationships and sexual activity that produce children are forming at all."

muizelaaron Lumina – a statically typed web-native language for JavaScript and WASM

Do you have benchmarks of the Wasm performance compared to other languages?

muizelaaron Hardening Firefox with Anthropic's Red Team

Yeah, the ones reported by Evyatar Ben Asher et al.

muizelaaron Woxi: Wolfram Mathematica Reimplementation in Rust

How does it compare to mathics?

How close is it to being able to run rubi: https://rulebasedintegration.org/?

muizelaaron LLVM: The bad parts

What section is that?

muizelaaron The health benefits of sunlight may outweigh the risk of skin cancer

This is the Lindqvist and Weller paper: https://link.springer.com/article/10.1007/s43630-025-00743-6

muizelaaron What's New with Firefox 142

about:memory will let you generate a report that tells you what the memory is being used for.

muizelaaron Pixel 10 Phones

What web apps do you use that use the File System Access API?

muizelaaron A gentle introduction to anchor positioning

It's being actively worked on: https://bugzilla.mozilla.org/show_bug.cgi?id=1838746

muizelaaron How to Firefox

Which of those tests do you feel best measures smoothness?

muizelaaron How to Firefox

What parts felt unresponsive and slow?

muizelaaron Firefox 120 to Firefox 141 Web Browser Benchmarks

Why is that bug important to you?

muizelaaron uBlock Origin is no longer available on the Chrome Store

I use BigQuery studio often in Firefox and haven’t noticed anything being worse than Chrome. What problems do you see?

muizelaaron Show HN: CodeTracer – A time-traveling debugger implemented in Nim and Rust

How does the implementation compare to RR?

muizelaaron Tilde, My LLVM Alternative

I thought the sea-of-nodes choice was interesting.

V8 has been moving away from sea-of-nodes. Here's a video where Ben Titzer is talking about V8's reasons for moving away from sea-of-nodes: https://www.youtube.com/watch?v=Vu372dnk2Ak&t=184s. Yasser, the author of Tilde, is is also in the video.

muizelaaron Garbage collected smart pointers in Rust via concurrent cycle collection

An older non concurrent cycle collector is here: https://github.com/fitzgen/bacon-rajan-cc

muizelaaron MLow: Meta's low bitrate audio codec

They also don't compare with Lyra (https://github.com/google/lyra)

muizelaaron Counted B-Trees (2017)

Does anyone know of a persistent/on-disk implementation of this kind of data structure?

muizelaaron Speedometer 3.0: A shared browser benchmark for web application responsiveness

What's your score in Firefox with extensions disabled?

muizelaaron What I talk about when I talk about query optimizer (part 1): IR design

Specifically: https://github.com/apache/arrow-datafusion/tree/main/datafus...

muizelaaron C++ Memory Model: Migrating from x86 to ARM (2021)

Check out the difference between LLVM's NotAtomic (C++) and Unordered (Java) here: https://llvm.org/docs/Atomics.html#notatomic

muizelaaron Firefox 118

Can you share some links to the crashes from about:crashes? You can use jrmuizel@mozilla.com if you want to share them privately.

muizelaaron The complete sequence of a human Y chromosome

The preprint: https://www.biorxiv.org/content/10.1101/2022.12.01.518724v2....

muizelaaron A Year in Review of 0-days Exploited In-the-Wild in 2022

https://github.com/webcompat/web-bugs/issues/125193

muizelaaron Memory Copy Hunting

I've also written something like this: https://github.com/jrmuizel/memcpy-find

It uses debug info to get a full stack including inline information which is especially helpful when running on Rust code.