Search posts, papers, and topics
62 posts · planet.mozilla.org
Firefox DevTools MCP 0.10.3 is released, introducing a new `close_firefox_session` tool, full-page screenshot capability, and configurable download folders. This update also includes bug fixes and clarifies the usage of `restart_firefox` for controlling Firefox via WebDriver BiDi.
Mozilla and Mila, backed by $5 M from Mozilla and $1 M from Hypertec plus Canadian government support, announce an open‑source AI foundation layer aimed at letting small organisations run private AI models. The post describes the high‑level vision (open standards + reference implementation) and a two‑year rollout plan, but provides no technical details, design rationale, or measurable results.
Firefox 155 shipped via a new 2‑week release train; the week’s highlights include a WebExtensions theme API addition, multi‑context address bar in Nightly, DevTools stylesheet editing in the JS debugger, and extensive New Tab page UI/telemetry work (stocks widget, privacy widget, policy‑locked settings). The post also calls out many volunteer contributors and a handful of infrastructure tweaks (T…
The article proposes a rights‑respecting approach to age‑assurance, assigning actuation to services, using devices for privacy‑preserving signal creation, offering user choice of providers, and leveraging zero‑knowledge credentials. It argues that policy must enforce open standards and end‑to‑end risk assessment to avoid privacy, security, and competition harms.
The Mozilla Automation Team warns of a targeted social‑engineering campaign aimed at Rust community members and popular crate owners, using fake video‑call offers to deliver malware. They advise staying skeptical of cold outreach, using trusted call platforms, enabling MFA, and reporting any concerns to Rust security contacts.
MozPhab 2.19.1 was released, fixing bug 2071003 where the 'patch --apply-to head' command would move to a detached HEAD. The update is a minor version bump with no other changes.
Mozilla announced integration of Mistral Small 4, an open‑source multilingual LLM, into the Firefox Smart Window beta for US, Canada, and France, positioning the partnership as a way to preserve user choice against dominant AI ecosystems.
This Week in Rust #669 is a curated roundup of community newsletters, project/tooling releases, blog posts, walkthroughs, research, the crate of the week, testing calls, and a detailed list of merged PRs across the Rust compiler, standard library, Cargo, rustfmt, Clippy, and rust‑analyzer, plus a brief compiler‑performance triage summary. No new RFCs were approved.
A year‑long, donation‑funded effort by Josh Bowman‑Matthews on the Servo project resulted in 8 new maintainers, 1150 PR reviews, 114 contributor‑focused issues (92 % resolved), extensive new documentation, and concrete stability work on the JS engine integration and flaky tests, plus support for a community grant.
Adds a git alias that fetches and checks out a branch from a contributor’s fork in one command, avoiding dependence on the GitHub `gh` CLI.
Firefox 154 shipped with GeForce NOW support and a PiP playback‑speed control; the team moved to a 2‑week release cadence, added a Linux‑system‑theme option in Nova, and landed dozens of bug fixes across Add‑ons, WebExtensions, DevTools, WebDriver and the New Tab page, many driven by community contributors.
Moving the Firefox build output directory (MOZ_OBJDIR) out of the source tree speeds up IDE indexing by removing massive artifact trees. The downside is that generated code shows up as missing symbols, so developers must balance indexing performance against code navigation.
Firefox added NVIDIA GeForce NOW streaming on Windows, announced upcoming JPEG XL image support, ran a contributor survey, and hosted a Reddit AMA.
The Mozilla Automation Team announced a push to bugzilla.mozilla.org, listing five bug updates ranging from documentation fixes to UI changes for Duo recovery codes.
MozPhab 2.19.0 ships with two bug fixes: the `--apply-to` flag now rebases onto the original base revision instead of applying a raw diff on HEAD, and a new `list` subcommand is added.
Thunderbird’s Automation Team rewrote 250+ settings strings to plain language, ran user tests with new copy on Notifications, Appearance, and Composition, and achieved >80% comprehension and high confidence, though interaction mismatches remain.
This issue of *This Week in Rust* (Sept 9 2026) aggregates community news, recent Rust releases, notable blog posts, a “crate of the week” (tokio‑rcu), and a long list of merged PRs across the compiler, std, Cargo, rustdoc, rustfmt, Clippy and rust‑analyzer. The most concrete technical highlight is the tokio‑rcu crate, an async‑aware userspace RCU implementation built on Tokio.
Weekly Firefox automation update covering new @media emulation UI, theme picker tweaks, Picture‑in‑Picture caption support, several WebExtension bug fixes (frameId attribution, startup race), DevTools enhancements (JSONL viewer, screenshot speed‑up, ::checkmark pseudo‑element), and assorted tooling clean‑ups.
Mozilla released a new PerfCompare version featuring a Simple View UI with checkbox column selection, expanded rows, and several bug fixes, including filter URL handling and NaN errors in stats.
PerfCompare now defaults to a simplified results table that shows only the key metrics (platform, base/new values, median shift, status and change size) while hiding detailed statistics behind an “Advanced options” dropdown. The view state—including selected columns, filters, and sorting—is encoded in the URL for easy sharing.
Firefox Profiler 0.9.0 release with a handful of CLI improvements (unlimited limit flag, better marker handling, network request count), UI tweaks (dark‑mode contrast, publish panel component), and library updates (oxfmt, typed arrays). Localisation added for several languages.
Thunderbird 154 adds native Microsoft Graph API support for Microsoft 365 email, replacing EWS which will be shut down in 2026‑27. Users must delete their EWS account and set up a new Graph account; calendar and address book support are still pending.
Firefox adds an AI Controls panel letting users toggle all current and future AI features, pick individual capabilities (translation, alt‑text, tab suggestions, link‑preview key points), and choose from multiple chatbot providers (Claude, ChatGPT, Gemini, Mistral) in a sidebar. The new Smart Window beta integrates an AI assistant that can read open tabs, browsing history, group related tabs, show…
This issue of *This Week in Rust* (2026‑09‑02) aggregates recent Rust ecosystem activity: rustup 1.29.1 release, new project directors, foundation hires, tooling updates (wasmi 2.0, Rustdoc 33 % faster, async FFI framework), observations on Cargo scheduling, safety‑certified Rust product, DNS cache memory savings, Rust vs Go concurrency, const‑fn compile‑time tricks, and a list of 522 merged PRs…
Firefox 155 WebDriver newsletter lists recent bug fixes and cleanup work, including fixing a DevTools conflict, removing a thin helper, correcting double‑click behavior, and simplifying subscription handling.
Firefox adds a built‑in EasyList ad blocker for iOS using WebKit’s Content Blocker API, highlighting how Apple’s app‑store and engine restrictions limit independent browsers from offering full add‑on ecosystems, and arguing that true competition requires platform‑level policy change.
Firefox for iOS now ships an optional built‑in ad blocker that leverages Apple’s WebKit Content Blocker API and the EasyList filter list. It blocks many third‑party ads and ad‑related trackers before they load, but leaves first‑party ads, search‑result ads, and Firefox‑provided sponsored content untouched. The feature is off by default and can be toggled in Settings → Browsing → Ad Blocker, and i…
Mozilla’s blog post recaps a meetup on why competition matters for AI, security, and an open internet, highlighting challenges from gatekeeper platforms and deceptive design. It argues that legislation like AICOA and open‑source AI are needed to keep the web competitive and user‑controlled.
Internship recap from Mozilla’s Localization team. Built a Django‑REST API to replace public GraphQL endpoints, added GitHub‑style personal access tokens, created a cross‑product translation search UI, took over the Pontoon browser add‑on, rewrote the Android localization workflow, and delivered an automated project‑manager dashboard with alerts.
Servo 0.5.0 (July 2026) ships 488 commits, adds Linux aarch64 binaries, a slew of CSS/DOM/WebGPU features, new SubtleCrypto curves, accessibility performance tweaks, security patches for quick‑xml and crossbeam‑epoch, and real‑world fixes for DuckDuckGo and Gumroad.
