Mozilla Announces Firefox 48 for Desktop With Multi-Process Support - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Mozilla Announces Firefox 48 for Desktop With Multi-Process Support

by

Mozilla announced the release of Firefox 48 for desktop yesterday, introducing a long-awaited multi-process feature to the browser along with a handful of interface tweaks.

Firefox 48 is the first version of the browser to include Electrolysis (or e10s), a multi-process feature Mozilla developers have been working on for over seven years.

firefox
Multi-process Firefox separates web content and UI processes, so that when a web page is consuming a large amount of processing power, other open tabs, buttons, and menus don't become unresponsive. Mozilla says it will be activating the feature behind the scenes in a staggered rollout for Firefox 48 users over the next few weeks.

While Safari and Chrome browsers have offered a similar feature for some time, this version of Firefox is also running Mozilla's Rust language, which is designed to offer performance comparable to C++, but without the latter's susceptibility to security flaws. Firefox 48 also blocks Adobe Flash Player by default, as the big online media companies like YouTube increasingly switch to HTML5.

Elsewhere, Mozilla has improved the Awesome Bar, which now offers more relevant search suggestions, while the Discovery Pane has been redesigned to make it easier to read. In addition, Reading Lists have been merged into Bookmarks and Synced tabs have been relocated to the History Panel.

Lastly, version 48 also ships security improvements that enhance download protection in Firefox, such as flagging uncommon downloads that appear to mimic popular installation packages for malicious purposes.

Firefox 48 is a free download for the Mac, though users of older Mac system should be aware that it drops support for OS X versions older than 10.9 Mavericks. [Direct link]

Tag: Firefox

Top Rated Comments

T'hain Esh Kelch Avatar
128 months ago
People still use FF? It kept getting slower and slower. Chrome ftw.
Oh, just about 100 million people I believe.
Score: 15 Votes (Like | Disagree)
keysofanxiety Avatar
128 months ago
People still use FF? It kept getting slower and slower. Chrome ftw.
Yuck, Chrome is even worse.

Firefox on Windows/Linux, Safari on OS X.
Score: 13 Votes (Like | Disagree)
128 months ago
Such a great browser.
Score: 4 Votes (Like | Disagree)
128 months ago
People still use FF? It kept getting slower and slower. Chrome ftw.
Score: 4 Votes (Like | Disagree)
VAGDesign Avatar
128 months ago
Handy for laptops mostly ;)
Score: 4 Votes (Like | Disagree)
128 months ago
People still use FF? It kept getting slower and slower. Chrome ftw.
I use all five browsers side-by-side — Safari as my primary, Firefox for one of my work apps, Brave for another, and Chrome and Opera to do various website testing in. It's silly for people to think they must choose and use only a single browser for all web browsing in this day and age. Each has its strengths, and running them side-by-side can improve productivity.
[doublepost=1470231862][/doublepost]
I can't get over the fact how terrible the interface feels compared to most other OS X apps. As if it never left the Mac OS 9 era. Trashed it immediately.
I think the Mozilla team realized that and the interface improved drastically many versions ago. It now feels much more "native" on the Mac. Still not 100%, and they bring over some Windows conventions, but overall, it's a huge improvement to how it used to be, and it actually looks and feels pretty good these days.
Score: 3 Votes (Like | Disagree)

Popular Stories

macOS 27 on MacBook Pro

Apple Says macOS 27 Won't Be Compatible With These Macs

Wednesday June 3, 2026 8:29 am PDT by
During WWDC 2025, Apple revealed that macOS 26 Tahoe would be the final major macOS version for Intel-based Macs. macOS 27 will be compatible with Apple silicon Macs only, meaning that you will need a Mac with an M-series chip or a MacBook Neo with an A18 Pro chip in order to install the software update. Apple will unveil macOS 27 during its WWDC 2026 keynote this Monday, June 8, and the...
MacBook Neo on Yellow Feature

MacBook Neo is So Popular That Apple Reportedly Doubled Production

Wednesday June 3, 2026 9:24 am PDT by
On an earnings call in late April, Apple's CEO Tim Cook said that customer response to the MacBook Neo was "off the charts," and the popularity of the laptop has reportedly led the company to significantly boost production. Apple supply chain analyst Ming-Chi Kuo this week said he believes that MacBook Neo shipments to Apple were doubled from an initial target of 5 million units to 10...
iphone 18 pro blue%402x

iPhone 18 Pro: Dark Cherry, Light Blue, and Dark Gray Chassis Leaked [Update]

Thursday June 4, 2026 5:18 am PDT by
Update: Since publication, new information has come to light suggesting the images have been AI-manipulated and are not in fact iPhone 18 Pro chassis parts. The original article follows. The color options Apple is reportedly planning for the upcoming iPhone 18 Pro and ‌iPhone 18 Pro‌ Max have appeared online today in the form of images of chassis parts of unknown authenticity....