Mozilla has heralded the release of a new version of Firefox that it says enables resource-intensive web content like games, apps, and image-editors to run in a browser window at previously unachievable native speeds.

To accomplish the feat, Firefox 52 supports Web Assembly, a new standard developed by Mozilla, which it calls "a game changer for the web".

Web Assembly

WebAssembly allows complex apps, like games, to run faster than ever before in a web browser. We expect that WebAssembly will enable applications that have historically been too complex to run fast in browsers – like immersive 3D video games, computer-aided design, video and image editing, and scientific visualization. We also expect that developers will use WebAssembly to speed up many existing web apps.

Mozilla has posted a video, embedded below, that shows the WebAssembly standard and WebGL 2 in action, with the help of a 3D environment demo rendered in real-time using the Unreal 4 Engine.

In addition to Web Assembly, the update adds automatic detection of "captive portals" often used by hotel wifi networks that require the user to log in before they can access the web.

Mozilla has also built contextual alerts into input fields to warn users when they're prompted to enter username and password information on a page that isn't encrypted with HTTPS.

Other additions to this version of Firefox include CSS Grid, a Grid Inspector developer tool, and automatic disabling of plugins that use the Netscape Plugin API (NPAPI) besides Flash.

Firefox 52 is a free download for the Mac.

Top Rated Comments

antonis Avatar
116 months ago
Bye bye java plugin. It's been an ugly ride.
Score: 6 Votes (Like | Disagree)
NT1440 Avatar
116 months ago
It's a good thing your personal needs dictate the development of web technologies.
.....Flash has a new critical vulnerability announced nearly weekly at this point. Web technologies have all leapfrogged past flash in capability, so other than specific in-house websites for enterprise reasons....why the hell does flash still need to be a thing? No modern website is being designed in Flash.
Score: 6 Votes (Like | Disagree)
T'hain Esh Kelch Avatar
116 months ago
Looks like they finally are removing all plug in support except flash. It's time for flash to go too folks. The last computer I had flash installed on was my PPC G5.
It's a good thing your personal needs dictate the development of web technologies.
Score: 6 Votes (Like | Disagree)
NT1440 Avatar
116 months ago
Because some websites still rely on it. The world doesn't change the instant a new technology is developed.
"The instant".......are you familiar at all with the history of Flash? :rolleyes:

It's been nearly a decade since the world learned, through many failed attempts, that Flash is simply never going to be an acceptable technology for mobile. Thus, if you are professionally developing a new website in 2017 that is based on Flash (and is NOT an internal company page), you are simply incompetent. It really is that simple.

Note very carefully what I'm saying. I understand a website developed in 2006 and never updated relies on flash.
Score: 4 Votes (Like | Disagree)
RightMACatU Avatar
116 months ago
Browser versions come out faster than my ability to change underwear :p
Score: 3 Votes (Like | Disagree)
lunarworks Avatar
116 months ago
"The instant".......are you familiar at all with the history of Flash? :rolleyes:

It's been nearly a decade since the world learned, through many failed attempts, that Flash is simply never going to be an acceptable technology for mobile. Thus, if you are professionally developing a new website in 2017 that is based on Flash (and is NOT an internal company page), you are simply incompetent. It really is that simple.

Note very carefully what I'm saying. I understand a website developed in 2006 and never updated relies on flash.
Yup. If you develop a site using Flash, you're doing it wrong.

Of course, developers of all stripes are notorious for being lazy as hell, and loathe learning new skills. Plenty of greybeard Windows devs still behave like they're developing for Windows 98.
Score: 3 Votes (Like | Disagree)

Popular Stories

Verizon New

Verizon is Down: iPhones Show 'SOS' Mode Due to Network Outage [Resolved]

Wednesday January 14, 2026 10:18 am PST by
Verizon is experiencing a major outage across the U.S. today, with hundreds of thousands of customers reporting issues with the network on the website Downdetector. There are also complaints across Reddit and other social media platforms. iPhone users and others with Verizon service are generally unable to make phone calls, send text messages, or use data over 5G or LTE due to the outage....
iPhone Top Left Hole Punch Face ID Feature Purple

New Leak Reveals iPhone 18 Pro Display Sizes, Under-Screen Face ID, and More

Wednesday January 14, 2026 7:09 am PST by
While the iPhone 18 Pro models are still around eight months away, a leaker has shared some alleged details about the devices. In a post on Chinese social media platform Weibo this week, the account Digital Chat Station said the iPhone 18 Pro and iPhone 18 Pro Max will have the same 6.3-inch and 6.9-inch display sizes as the iPhone 17 Pro and iPhone 17 Pro Max. Consistent with previous...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Later This Year With These 12 New Features

Thursday January 15, 2026 10:56 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another eight months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models, as of January 2026: The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID...
maxresdefault

Google Gemini-Powered Siri Will Reportedly Have These 7 New Features

Tuesday January 13, 2026 7:52 pm PST by
Apple and Google this week announced that Gemini will help power a more personalized Siri, and The Information has provided more details. Subscribe to the MacRumors YouTube channel for more videos. As soon as this spring, the report said the revamped version of Siri will be able to… Answer more factual/world knowledge questions in a conversational manner Tell more stories Provide...
2024 iPhone Boxes Feature

Apple Adjusts Trade-In Values for iPhones, Macs, and More

Thursday January 15, 2026 11:19 am PST by
Apple today updated its trade-in values for select iPhone, iPad, Mac, and Apple Watch models. Trade-ins can be completed on Apple's website, or at an Apple Store. The charts below provide an overview of Apple's current and previous trade-in values in the United States, according to the company's website. Most of the values declined slightly, but some of the Mac values increased. iPhone ...