Web, Mozilla, and Mozilla

posted by Roy Schestowitz on Sep 11, 2026

• RTL-SDR ☛ GNU Radio World: Browser-Based GNU Radio Flowgraphs

  Thank you to Marc Lictman, vice president of GNU Radio, for writing in and sharing with us his new project called "GNU Radio World," which is essentially GNU Radio Companion in a web browser, written in WebAssembly.

  If you're not familiar with it, GNU Radio is a very popular free and open-source toolkit for implementing digital signal processing algorithms and applications. It lets you experiment with and build radio receivers, transmitters, and DSP chains through a graphical block-based flowgraph.

  Marc Lictman writes: [...]

• Harry Roberts ☛ Web-Perf Wednesday 008 – Good INP Rates Keep Falling

  There’s been plenty of movement since last week, although the most useful news is a result without a tidy explanation. The latest Chrome UX Report (CrUX) shows another fall in the share of origins with good Interaction to Next Paint (INP), and Chrome itself says the continuing regression is cause for concern. Chrome has also refined its JavaScript Self-Profiling trial, Safari has rebuilt its module loader, and Chrome’s fortnightly releases are now live. Teams should explain their own INP before treating the wider trend as the cause.

• Artyom Bologov ☛ My Baseline Browser

  Web is hard. Implementing a compliant browser is a doomed enterprise unless you’re Google, Apple, or a whole Open Source community.

  But there’s a new breed of browsers like Dillo that focus on a restricted set of Web features. And ignore a whole lot of other “bloat.” Which is a good approach, I think. However, there’s no list of actually useful features that are not “bloated” and thus should be included in a browser. (Consider this a kind of informal standard.) So here’s my list of essential browser features (likely to be updated often:)

• Mozilla

  • Jonathan Almeida: Move MOZ_OBJDIR outside of mozilla-central to speed up your IDE

    In mozilla-central (the firefox monorepo), a default object store directory is created within the source directory. This is equivalent to the build/ directory you would typically see in other projects.

    While this is typically fine, I've found that Android Studio indexes these files and we don't (yet?) have the ability to inform it to not do so because an objdir needs to be evaluated from MOZ_OBJDIR first.

  • Mozilla ☛ About:Community: Game on: Play, share, and help shape Mozilla

    P.S. Apologies for the delay in publishing this edition on the community blog. The original newsletter was sent to subscribers on August 27.

    Firefox was leveling up in August! GeForce NOW arrived on Firefox for Windows, JPEG XL support was on the way, and the Firefox + NVIDIA teams joined forces for a Reddit AMA. We also invited SUMO and Mozilla Connect contributors to share their experiences through the Mozilla Contributor Survey, which has since closed (thank you to everyone who took the time to participate!).

    Read on to catch up on what you may have missed and see what the community was up to!

• Standards/Consortia

  • Joost de Valk ☛ Why XML sitemaps are losing their pretty view

    The code browsers use to run XSLT has security problems. Bugs in how it handles memory can let attackers harm browser users. The HTML Standard now advises against using it.

    Chrome plans to switch it off in November 2026, with temporary exceptions for some users. Firefox and WebKit also support removal, though they have their own schedules. XML itself will keep working, and browsers can still style it with CSS.