Mozilla Releases First Beta of Firefox 4

115112 firefox 4 beta 1

Mozilla yesterday announced the release of Firefox 4 Beta 1 for Windows, Mac, and Linux. Not all of the changes scheduled for Firefox 4 are available on Mac and Linux yet, however, as major visual changes including the move of tabs to the top of the window (a feature tested and discarded by Apple in a Safari 4 public beta last year) and implementation of the Firefox button for quick access to commonly-used actions are Windows-only for the time being.

There is a lot more to this beta than a facelift on Windows, including:

- New Add-Ons Manager: gives you more space to manage your Add-Ons, Themes and Plugins. Customizing your browser has never been easier!
- HD Video: Watch hardware-accelerated, super-smooth, HD-quality HTML5 video on YouTube using the new WebM format.
- Privacy improvements: Mozilla always puts privacy first, and this latest beta fixes flaws in some Web standards that could expose your browser history.
- Crash Protection: Experience uninterrupted browsing (now available on all platforms) - when a plugin crashes or freezes, you can resume browsing by simply refreshing the page.
- Performance: We know that performance is important. In this version, we focused on improving responsiveness at start-up and during page loads. This is just the beginning for performance improvements in Firefox 4.

Firefox 4 also includes a number of under-the-hood enhancements to assist web developers with their projects. Finally, the new beta integrates a new Feedback Add-On that allows users to quickly send input back to Mozilla and to anonymously participate in Mozilla studies of web usage if they so choose.

Popular Stories

iPhone 16 Camera Lozenge 2 Colors

iPhone 16 Plus Rumored to Come in These 7 Colors

Wednesday April 10, 2024 3:52 am PDT by
Apple's iPhone 16 Plus may come in seven colors that either build upon the existing five colors in the standard iPhone 15 lineup or recast them in a new finish, based on a new rumor out of China. According to the Weibo-based leaker Fixed focus digital, Apple's upcoming larger 6.7-inch iPhone 16 Plus model will come in the following colors, compared to the colors currently available for the...
apple tv 4k yellow bg feature

When to Expect a New Apple TV to Launch

Tuesday April 9, 2024 8:30 am PDT by
It has been nearly a year and a half since the current Apple TV was released, so the device is becoming due for a hardware upgrade. Below, we recap rumors about the next Apple TV, including potential features and launch timing. The current model is the third-generation Apple TV 4K, announced in October 2022. Key new features compared to the previous model from 2021 include a faster A15...
apple silicon feature joeblue

Macs to Get AI-Focused M4 Chips Starting in Late 2024

Thursday April 11, 2024 10:10 am PDT by
Apple will begin updating its Mac lineup with M4 chips in late 2024, according to Bloomberg's Mark Gurman. The M4 chip will be focused on improving performance for artificial intelligence capabilities. Last year, Apple introduced the M3, M3 Pro, and M3 Max chips all at once in October, so it's possible we could see the M4 lineup come during the same time frame. Gurman says that the entire...
iOS 18 WWDC 24 Feature 2

iOS 18 May Feature All-New 'Safari Browsing Assistant'

Wednesday April 10, 2024 6:11 am PDT by
iOS 18 will apparently feature a new Safari browsing assistant, according to backend code on Apple's servers discovered by Nicolás Álvarez. MacRumors contributor Aaron Perris confirmed that the code exists, but not many details are known at this time. Álvarez said it seems like the browsing assistant will use iCloud Private Relay's infrastructure to send relevant data to Apple in a...
maxresdefault

Review: Six Months With the iPhone 15 Pro

Wednesday April 10, 2024 10:53 am PDT by
It's been a bit over six months since the iPhone 15 lineup came out in September, and MacRumors videographer Dan Barbera has been using an iPhone 15 Pro Max sans case since launch. Over on our YouTube channel, Dan did a long term review to demo how his phone has held up and his thoughts on the Action button, battery life, and camera features. Subscribe to the MacRumors YouTube channel for more ...
iPhone 16 Pro Sizes Feature

Alleged iPhone 16 Battery Details Show Smaller Capacity for One Model

Tuesday April 9, 2024 3:46 am PDT by
Apple's upcoming iPhone 16 lineup will feature bigger battery capacities compared to previous-generation models with the exception of the iPhone 16 Plus, which will have a smaller battery than its predecessor. That's according to the Chinese Weibo-based leaker OvO Baby Sauce OvO, a relatively new source of supply chain leaks with an as-yet unproven track record for accuracy. The iPhone 16 ...