Firefox

Firefox Finally Outperforming Google Chrome In SunSpider (phoronix.com) 40

Posted by BeauHD from the would-you-look-at-that dept.
Michael Larabel writes via Phoronix: Mozilla developers are celebrating that they are now faster than Google Chrome with the SunSpider JavaScript benchmark, although that test has been superseded by the JetStream benchmark. Last week a new Firefox Nightly News was published that outlines that "We're now apparently beating Chrome on the SunSpider JavaScript benchmark!" The provided numbers now show Firefox easily beating Chrome in this decade-old JavaScript benchmark. The benchmarks come from AreWeFastYet.com. Meanwhile for the newer and more demanding JetStream 2.0 benchmark, Google Chrome continues to win easily over Firefox. You can learn more about the latest Firefox Nightly build advancements via Firefox Nightly News.
Firefox

Does Desktop Linux Have a Firefox Problem? (osnews.com) 164

Posted by EditorDavid from the tangle-web dept.
OS News' managing editor calls Firefox "the single most important desktop Linux application," shipping in most distros (with some users later opting for a post-installation download of Chrome).

But "I'm genuinely worried about the state of browsers on Linux, and the future of Firefox on Linux in particular..." While both GNOME and KDE nominally invest in their own two browsers, GNOME Web and Falkon, their uptake is limited and releases few and far between. For instance, none of the major Linux distributions ship GNOME Web as their default browser, and it lacks many of the features users come to expect from a browser. Falkon, meanwhile, is updated only sporadically, often going years between releases. Worse yet, Falkon uses Chromium through QtWebEngine, and GNOME Web uses WebKit (which are updated separately from the browser, so browser releases are not always a solid metric!), so both are dependent on the goodwill of two of the most ruthless corporations in the world, Google and Apple respectively.

Even Firefox itself, even though it's clearly the browser of choice of distributions and Linux users alike, does not consider Linux a first-tier platform. Firefox is first and foremost a Windows browser, followed by macOS second, and Linux third. The love the Linux world has for Firefox is not reciprocated by Mozilla in the same way, and this shows in various places where issues fixed and addressed on the Windows side are ignored on the Linux side for years or longer. The best and most visible example of that is hardware video acceleration. This feature has been a default part of the Windows version since forever, but it wasn't enabled by default for Linux until Firefox 115, released only in early July 2023. Even then, the feature is only enabled by default for users of Intel graphics — AMD and Nvidia users need not apply. This lack of video acceleration was — and for AMD and Nvidia users, still is — a major contributing factor to Linux battery life on laptops taking a serious hit compared to their Windows counterparts... It's not just hardware accelerated video decoding. Gesture support has taken much longer to arrive on the Linux version than it did on the Windows version — things like using swipes to go back and forward, or pinch to zoom on images...

I don't see anyone talking about this problem, or planning for the eventual possible demise of Firefox, what that would mean for the Linux desktop, and how it can be avoided or mitigated. In an ideal world, the major stakeholders of the Linux desktop — KDE, GNOME, the various major distributions — would get together and seriously consider a plan of action. The best possible solution, in my view, would be to fork one of the major browser engines (or pick one and significantly invest in it), and modify this engine and tailor it specifically for the Linux desktop. Stop living off the scraps and leftovers thrown across the fence from Windows and macOS browser makers, and focus entirely on making a browser engine that is optimised fully for Linux, its graphics stack, and its desktops. Have the major stakeholders work together on a Linux-first — or even Linux-only — browser engine, leaving the graphical front-end to the various toolkits and desktop environments....

I think it's highly irresponsible of the various prominent players in the desktop Linux community, from GNOME to KDE, from Ubuntu to Fedora, to seemingly have absolutely zero contingency plans for when Firefox enshittifies or dies...
Android

Mozilla To Bring Firefox Desktop Extension To Android Browser (mozilla.org) 30

Posted by msmash from the moving-forward dept.
Scott DeVaney, writing at Mozilla blog: In the coming months Mozilla will launch support for an open ecosystem of extensions on Firefox for Android on addons.mozilla.org (AMO). We'll announce a definite launch date in early September, but it's safe to expect a roll-out before the year's end. Here's everything developers need to know to get their Firefox desktop extensions ready for Android usage and discoverability on AMO.

For the past few years Firefox for Android officially supported a small subset of extensions while we focused our efforts on strengthening core Firefox for Android functionality and understanding the unique needs of mobile browser users. Today, Mozilla has built the infrastructure necessary to support an open extension ecosystem on Firefox for Android. We anticipate considerable user demand for more extensions on Firefox for Android, so why not start optimizing your desktop extension for mobile-use right away?
Firefox

Firefox 115 Released (mozilla.org) 61

Posted by msmash from the moving-forward dept.
williamyf writes: Today, Mozilla released Firefox 115. Changes most visible to users include:

* Hardware video decoding is now enabled for Intel GPUs on Linux..

* Migrating from another browser? Now you can bring over payment methods you've saved in Chrome-based browsers to Firefox.

* The Tab Manager dropdown now features close buttons, so you can close tabs more quickly.

* The Firefox for Android address bar's new search button allows you to easily switch between search engines and search your bookmarks and browsing history.

* We've refreshed and streamlined the user interface for importing data in from other browsers.

* Users without platform support for H264 video decoding can now fallback to Cisco's OpenH264 plugin for playback.

But the most important feature is that this release is the new ESR. Why this is important? y'all ask, well:

* Many a "downstream" project depends on Firefox ESR, for example the famous email client Thunderbird, or KaiOS (a mobile OS very popular in India, SE Asia, Africa and LatAm), so, for better or worse, whatever made it to (or is lacking from) this version of the browser, those projects have to use for the next year.

* Firefox ESR is the default browser of many distros, like Debian and Kali Linux, so, whatever made it to this version will be there for next year, ditto to whatever is lacking.

* If you are on old -- unsupported OSs, like Windows 7, 8-8.1 or MacOS 10.14 (Mojave, the last MacOS with support for 32 Bit Apps), 10.13 or 10.12 you will automatically be migrated to Firefox ESR, so this will be your browser until Sept. 2024.
Firefox

Firefox Users on Windows 7, 8 and 8.1 Moving To Extended Support Release (mozilla.org) 50

Posted by msmash from the clock's-ticking dept.
Mozilla: Firefox version 115 will be the last supported Firefox version for users of Windows 7, Windows 8 and Windows 8.1. If you are using these versions of Windows you will be moved to the Firefox Extended Support Release (ESR) channel by an application update. Mozilla will provide security updates for these users until September 2024. No security updates will be provided after that date.
Firefox

Mozilla Stops Firefox Fullscreen VPN Ads After User Outrage (bleepingcomputer.com) 68

Posted by msmash from the closer-look dept.
Firefox users have been complaining about very intrusive full-screen advertisements promoting Mozilla VPN displayed in the web browser when navigating an unrelated page. From a report: The ads popping in Firefox disable the web browser's functionality, denying users access to the interface and graying out everything in the background until they close them. Some users reported on Reddit that the annoying full-screen ads even cause Firefox to become unresponsive for up to 30 seconds, forcing them to terminate the browser's process. [...] BleepingComputer has contacted Mozilla about the matter and received the following statement following the barrage of complaints from Firefox users: "We're continuously working to understand the best ways to communicate with people who use Firefox. Ultimately, we accomplished the exact opposite of what we intended in this experiment and quickly rolled the experience back. We apologize for any confusion or concern."
Firefox

Microsoft Wants Firefox To Make Bing Its Default Search Engine (androidpolice.com) 52

Posted by BeauHD from the Google-under-pressure dept.
According to The Information, Microsoft wants to bid to make Bing Firefox's default search engine. Android Police reports: The browser's contract with Google is set to expire this year, at which point Mozilla could either renew it or switch to a different search engine. Microsoft would very much like to take Google's place in Firefox. It's not a guarantee that it will actually help boost Bing's usage -- after all, Firefox users who don't want to use Bing could just switch to a different search engine, as Yahoo found out a few years ago -- but Microsoft sees potential in such a deal.

The report also notes that there's also a potentially more juicy opportunity coming up for Microsoft if it really wants to get serious about pushing Bing. Apple's Safari browser, which is the main web browser on Apple devices, will have its Google contract expire next year. Despite throwing shade constantly, Google really benefits from the deal it currently has with Apple, and Microsoft could sweep in and try to get Bing to become the main browser on iPhones.
Mozilla

Mozilla Buys Fakespot, a Startup That Identifies Fake Reviews (techcrunch.com) 27

Posted by msmash from the how-about-that dept.
Mozilla announced today that it has acquired Fakespot, a startup that offers a website and browser extension that helps users identify fake or unreliable reviews. From a report: The financial terms of the deal were not disclosed. Fakespot's offerings can be used to spot fake reviews listed on various online marketplaces including Amazon, Yelp, TripAdvisor and more. Founded in 2016, New York-based Fakespot uses an AI and machine learning system to detect patterns and similarities between reviews in order to flag those that are most likely to be deceptive. Fakespot provides a rating or grade for the product's reviews in order to help consumers make more informed decisions when making a purchase. The goal behind the company's website and browser extension is to give users the ability to quickly see where deceptive reviews may be artificially inflating a product's ranking in search engines.
Firefox

Windows Defender Finally Squashes Firefox Bug That Ate CPUs For 5 Years (pcworld.com) 85

Posted by msmash from the better-late-than-never dept.
An anonymous reader shares a report: Firefox has a reputation of being something of a resource hog, even among modern browsers. But it might not be entirely earned, because it looks like a CPU bug affecting Firefox users on Windows was actually the fault of Windows Defender. The latest update to the ubiquitous security tool addresses the issue, and should result in measurably lower CPU usage for the Windows version of Firefox. According to Mozilla senior software engineer Yannis Juglaret, the culprit was MsMpEng.exe, which you might recognize from your Task Manager. It handles the Real-Time protection feature that monitors web activity for malicious threats.

The bug was causing Firefox to call on the service much more frequently than comparable browsers like Chrome or Edge, resulting in notable CPU spikes. Said CPU spikes could reduce performance in other applications or affect a laptop's battery life. The issue was first reported on Mozilla's bug tracker system way back in 2018 and quickly assigned to the MsMpEng service, but some more recent and diligent documentation on the part of Juglaret resulted in more swift action from Microsoft's developers.
Mozilla

Mozilla Launches a New Startup Focused on 'Trustworthy' AI (techcrunch.com) 61

Posted by msmash from the moving-forward dept.
On the eve of its 25th anniversary, Mozilla, the not-for-profit behind the Firefox browser, is launching an AI-focused startup. From a report: Called Mozilla.ai, the newly forged company's mission isn't to build just any AI -- its mission is to build AI that's open source and "trustworthy," according to Mark Surman, the executive president of Mozilla and the head of Mozilla.ai. "Working on trustworthy AI for almost five years, I've constantly felt a mix of excitement and anxiety," he told TechCrunch in an email interview. "The last month or two of rapid-fire big tech AI announcements has been no different. Really exciting new tech is emerging -- new tools that have immediately sparked artists, founders ... all kinds of people to do new things. The anxiety comes when you realize almost no one is looking at the guardrails."

Surman was referring to the rash of AI models in recent months that, while impressive in their capabilities, have worrisome real-world implications. At release, OpenAI's text-generating ChatGPT could be prompted to write malware, identify exploits in open source code and create phishing websites that looked similar to well-trafficked sites. Text-to-image AI like Stable Diffusion, meanwhile, has been co-opted to create pornographic, nonconsensual deepfakes and ultra-graphic depictions of violence. The creators of these models say that they're taking steps to curb abuse. But Mozilla felt that not enough was being done. "We've been working on trustworthy AI on the public interest research side for about five years, hoping other industry players with more AI expertise would step up to build more trustworthy tech," Surman said. "They haven't. So we decided mid-last year we needed to do it ourselves -- and to find like-minded partners to do it alongside us. We then set out to find someone with the right mix of academic and industry AI experience to lead it." Funded by a $30 million seed investment from the Mozilla Foundation, Mozilla's parent organization, Mozilla.ai is a wholly owned subsidiary of the Mozilla Foundation -- much like the Mozilla Corporation (the org responsible for developing Firefox) and Mozilla Ventures (the Mozilla Foundation's VC fund). Its managing director is Moez Draief, who previously was the chief scientist at Huawei's Noah's Ark AI lab and the global chief scientist at consulting company Capgemini.
Mozilla

Mozilla Launches 'Responsible AI' Challenge 35

Posted by msmash from the moving-forward dept.
Mozilla called on entrepreneurs to create trustworthy AI applications as it announced a "Responsible AI" challenge Tuesday at the South by Southwest festival in Austin, Texas. From a report: At a festival where companies could not be more eager to share their plans, half-baked and otherwise, for the explosive field of generative AI, Mozilla offered an opportunity to do so with a little more foresight. "If anything, the last few months have shown that AI is no longer our future. It's our present," Imo Udom, senior vice president of Innovations Ecosystems at Mozilla, who announced the initiative on stage during a panel discussion with Axios, said. "We believe in AI's power, commercial opportunity, and potential to solve challenging problems," Udom said. "While decades of effort have gone into reaching this point with AI, the time has come to establish the future we want with AI." Applications for the challenge will open on March 30 and winners are eligible for $50,000 prizes and a $25,000 top prize, along with mentorship and resources for "responsible AI" projects.
Ubuntu

New 'Ubuntu Flatpak Remix' Has (Unofficial) Flatpak Support Preinstalled (9to5linux.com) 37

Posted by EditorDavid from the new-flavors dept.
An anonymous reader shares this report from 9to5Linux: After Canonical's announcement that future Ubuntu releases won't include Flatpak support by default, someone already made an unofficial Ubuntu flavor that ships with support for Flatpak apps preinstalled and working out of the box, called Ubuntu Flatpak Remix.

Meet Ubuntu Flatpak Remix, an unofficial Ubuntu derivative that doesn't feature support for Snap apps and comes with support for Flatpak apps working out of the box. Several key apps are preinstalled in the Flatpak format rather than as a Snap app, including the Mozilla Firefox web browser, Mozilla Thunderbird email client, and LibreOffice office suite.... Support for the Flathub portal is installed as well, so you'll be able to install more apps with just a few clicks.
Programming

Rust Project Reveals New 'Constitution' in Wake of Crisis (thenewstack.io) 81

Posted by EditorDavid from the Rust-never-sleeps dept.
"The Rust open source project, which handles standards for the language, released a new governance plan Thursday," reports The New Stack, "the cumulation of six months of intense work." Released as a request for comment on GitHub, it will now undergo a comment period. It requires ratification by team leaders before it's accepted.

The Rust project interacts with, but is separate from, the Rust Foundation, which primarily handles the financial assets of Rust. Two years ago, the project had a very public blowup after its entire mod team resigned and publicly posted a scathing account of the core team, which the mod team called "unaccountable to anyone but themselves." It even suggested the core team was not to be trusted, although the team later recanted and apologized for that.

[Rust core team developer] Josh Triplett understandably didn't want to dwell on the kerfuffle that lead to this action. He focused instead on the underlying structural issues that lead to the leadership crisis. "As a result of that, there was widespread agreement within the project that we needed to create a better formal governance structure that removed some of those ambiguities and conflicts, and had mechanisms for dealing with this without ever having a similar crisis," Triplett told The New Stack. "We don't want to ever to have things get to that point again...."

The original Rust project governance structure evolved out of Mozilla, where Rust began and was nurtured for years. Around 2016 or 2017, a request for comment came out that established the Rust project's governance, Triplett said. It created approximately six teams, including the core, language, mod, library and cargo teams. Among the problems with the old model was that the core team became responsible for not just overseeing problems that arose, but solving them as well, Triplett said. That led to burnout and problems, said JT Turner, one of the co-authors on the new model and a member of the Rust core team.... Ultimately, the old governance model was "not a very precise document," Triplett added.

"It was just, 'Hey, here's the rough divisions of power,' and because that document was very rough and informal, it didn't scale to today," he said. "That's one of the things that led to the governance crisis."
Programming

Ask Slashdot: What's the Best Podcast About Computer Science? 37

Posted by EditorDavid from the production-environments dept.
Long-time Slashdot reader destinyland writes: They say "always be learning" — but do podcasts actually help? I've been trying to find podcasts that discuss programming, and I've enjoyed Lex Fridman's interviews with language creators like Guido van Rossum, Chris Lattner, and Brendan Eich (plus his long interviews with Donald Knuth). Then I discovered that GitHub, Red Hat, Stack Overflow, and the Linux Foundation all have their own podcast.

There's a developer podcast called "Corecursive" that I like with the tagline "the stories behind the code," plus a whole slew of (sometimes language-specific) podcasts at Changelog (including an interview with Brian Kernighan). And it seems like there's an entirely different universe of content on YouTube — like the retired Microsoft engineer doing "Dave's Garage," Software Engineering Daily, and the various documentaries by Honeypot.io. Computerphile has also scored various interviews with Brian Kernighan, and if you search YouTube enough you'll find stray interviews with Steve Wozniak.

But I wanted to ask Slashdot's readers: Do you listen to podcasts about computer science? And if so, which ones? (Because I'm always stumbling across new programming podcasts, which makes me worry about what else I've been missing out on.) Maybe I should also ask if you ever watch coding livestreams on Twitch — although that gets into the more general question of just how much content we consume that's related to our profession.
Fascinating discussions, or continuing work-related education? (And do podcasts really help keep your skills fresh? Are coding livestreams on Twitch just a waste of time?) Most importantly, does anyone have a favorite geek podcast that they're listening to? Share your own experience and opinions in the comments...

What's the best podcast about computer science?
Google

Data Privacy Labels for Most Top Apps in Google Play Store are False or Misleading, Mozilla Study Finds 17

Posted by msmash from the closer-look dept.
Mozilla researchers find discrepancies between Google Play Store's Data Safety labels and privacy policies of nearly 80 percent of the reviewed apps. From the report: Google Play Store's Data Safety labels would have you believe that neither TikTok nor Twitter share your personal data with third parties. The apps' privacy policies, however, both explicitly state that they share user information with advertisers, Internet service providers, platforms, and numerous other types of companies. These are two of the most egregious examples uncovered by Mozilla's *Privacy Not Included researchers as part of a study looking at whether Google Play Store's new Data Safety labels provide consumers with accurate information about apps collect, use, and share personal data. In nearly 80 percent of the apps reviewed, Mozilla found that the labels were false or misleading based on discrepancies between the apps' privacy policies and the information apps self-reported on Google's Data Safety Form. Researchers concluded that the system fails to help consumers make more informed choices about their privacy before purchasing or downloading one of the store's 2.7 million apps.

The study -- "See No Evil: How Loopholes in the Google Play Store's Data Safety Labels Leave Companies in the Clear and Consumers in the Dark," -- uncovers serious loopholes in the Data Safety Form, which make it easy for apps to provide false or misleading information. For example, Google exempts apps sharing data with "service providers" from its disclosure requirements, which is problematic due to both the narrow definition it uses for service providers and the large amount of consumer data involved. Google absolves itself of the responsibility to verify whether the information is true stating that apps "are responsible for making complete and accurate declarations" in their Data Safety labels. In a statement Google said: "This report conflates company-wide privacy policies that are meant to cover a variety of products and services with individual Data safety labels, which inform users about the data that a specific app collects. The arbitrary grades Mozilla Foundation assigned to apps are not a helpful measure of the safety or accuracy of labels given the flawed methodology and lack of substantiating information."
Firefox

What's New in Firefox Version 110.0? (omgubuntu.co.uk) 63

Posted by EditorDavid from the better-browsing dept.
Valentine's Day saw Mozilla releasing version 110.0 of its Firefox browser. OMG Ubuntu highlights some of its new features: Firefox already supports importing bookmarks, history, and passwords from Microsoft Edge, Google Chrome, Chromium, and Safari but once you have the Firefox 110 update you can also import data from Opera, Opera GX, and Vivaldi too — which is handy.

Other changes in Firefox 110 include the ability to clear date, time, and datetime-local input fields using using ctrl + backspace and ctrl + delete on Linux (and Windows) — no, can't say I ever noticed I couldn't do that, either.

Additionally, Mozilla say GPU-accelerated Canvas2D is now enabled by default on Linux, and we can all expect to benefit from a miscellaneous clutch of WebGL performance improvements.
Programming

How Rust Went From a Side Project To the World's Most-Loved Programming Language (technologyreview.com) 118

Posted by BeauHD from the then-and-now dept.
An anonymous reader quotes a report from MIT Technology Review: Many software projects emerge because -- somewhere out there -- a programmer had a personal problem to solve. That's more or less what happened to Graydon Hoare. In 2006, Hoare was a 29-year-old computer programmer working for Mozilla, the open-source browser company. Returning home to his apartment in Vancouver, he found that the elevator was out of order; its software had crashed. This wasn't the first time it had happened, either. Hoare lived on the 21st floor, and as he climbed the stairs, he got annoyed. "It's ridiculous," he thought, "that we computer people couldn't even make an elevator that works without crashing!" Many such crashes, Hoare knew, are due to problems with how a program uses memory. The software inside devices like elevators is often written in languages like C++ or C, which are famous for allowing programmers to write code that runs very quickly and is quite compact. The problem is those languages also make it easy to accidentally introduce memory bugs -- errors that will cause a crash. Microsoft estimates that 70% of the vulnerabilities in its code are due to memory errors from code written in these languages.

Most of us, if we found ourselves trudging up 21 flights of stairs, would just get pissed off and leave it there. But Hoare decided to do something about it. He opened his laptop and began designing a new computer language, one that he hoped would make it possible to write small, fast code without memory bugs. He named it Rust, after a group of remarkably hardy fungi that are, he says, "over-engineered for survival." Seventeen years later, Rust has become one of the hottest new languages on the planet -- maybe the hottest. There are 2.8 million coders writing in Rust, and companies from Microsoft to Amazon regard it as key to their future. The chat platform Discord used Rust to speed up its system, Dropbox uses it to sync files to your computer, and Cloudflare uses it to process more than 20% of all internet traffic.

When the coder discussion board Stack Overflow conducts its annual poll of developers around the world, Rust has been rated the most "loved" programming language for seven years running. Even the US government is avidly promoting software in Rust as a way to make its processes more secure. The language has become, like many successful open-source projects, a barn-raising: there are now hundreds of die-hard contributors, many of them volunteers. Hoare himself stepped aside from the project in 2013, happy to turn it over to those other engineers, including a core team at Mozilla. It isn't unusual for someone to make a new computer language. Plenty of coders create little ones as side projects all the time. But it's meteor-strike rare for one to take hold and become part of the pantheon of well-known languages alongside, say, JavaScript or Python or Java. How did Rust do it?
Programming

A Developer is Reimplementing GNU's Core Utilities in Rust (phoronix.com) 186

Posted by EditorDavid from the Rust-never-sleeps dept.
A Rust-based re-implementation of GNU core utilities like cp and mv is "reaching closer to parity with the widely-used GNU upstream and becoming capable of taking on more real-world uses," reports Phoronix: Debian developer Sylvestre Ledru [also an engineering director at Mozilla] began working on uutils during the COVID-19 pandemic and presented last week at FOSDEM 2023 on his Coreutils replacement effort. With uutils growing into increasingly good shape, it's been packaged up by many Linux distributions and is also used now by "a famous social network via the Yocto project...."

The goals with uutils are to try to create a drop-in replacement for GNU Coreutils, strive for good cross-platform support, and easy testing. Ledru's initial goals were about being able to boot Debian, running the most popular packages, building key open-source software, and all-around it's been panning out to be a great success.... [M]ore performance optimizations are to come along with other work for compatibility against the GNU tools and implementing some still missing options in different programs
Mozilla

Mozilla Plans Ground-Up UI Redesign For Thunderbird Email Client (arstechnica.com) 52

Posted by BeauHD from the what-to-expect dept.
An anonymous reader quotes a report from Ars Technica: Why does Thunderbird look so old?" That's one of the most frequently asked questions about Thunderbird, according to Thunderbird Project Design Manager Alessandro Castellani (along with "Is Thunderbird dead?"). And it's one he seeks to answer definitively in a new blog post about Thunderbird's planned 2023 release, codenamed Supernova.

The Supernova release will include an overhaul of Thunderbird's user interface. Castellani didn't share screenshots, but he indicated that the new UI would be "simple and clean" and targeted mostly at new users. For "veteran users," the interface will also be "flexible and adaptable" so that people who prefer the way Thunderbird looks now can "maintain that familiarity they love." Supernova will also include several other big changes, including a redesigned calendar and support for Firefox Sync.
Mozilla

Mozilla, Like Google, is Looking Ahead To the End of Apple's WebKit Rule (theregister.com) 44

Posted by msmash from the fighting-back dept.
Mozilla is planning for the day when Apple will no longer require its competitors to use the WebKit browser engine in iOS. From a report: Mozilla conducted similar experiments that never went anywhere years ago but in October 2022 posted an issue in the GitHub repository housing the code for the iOS version of Firefox that includes a reference to GeckoView, a wrapper for Firefox's Gecko rendering engine. Under the current Apple App Store Guidelines, iOS browser apps must use WebKit. So a Firefox build incorporating Gecko rather than WebKit currently cannot be distributed through the iOS App Store.

As we reported last week, Mozilla is not alone in anticipating an iOS App Store regime that tolerates browser competition. Google has begun work on a Blink-based version of Chrome for iOS. The major browser makers -- Apple, Google, and Mozilla -- each have their own browser rendering engines. Apple's Safari is based on WebKit; Google's Chrome and its open source Chromium foundation is based on Blink (forked from WebKit a decade ago); and Mozilla's Firefox is based on Gecko. Microsoft developed its own Trident rendering engine in the outdated Internet Explorer and a Trident fork called EdgeHTML in legacy versions of Edge but has relied on Blink since rebasing its Edge browser on Chromium code.

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