chrome.jpgBack in August, Google launched a beta build of 64-bit Chrome for Mac, following the public release of 64-bit Chrome for Windows. After several months of testing, Google today launched Chrome 39, its first stable-release 64-bit browser for OS X.

As Google said when it launched a beta version of 64-bit Chrome for Mac, 64-bit support will bring several speed and security improvements to the browser, in addition to decreasing the amount of memory that it uses.

Chrome 64-bit Chrome has become faster as a result of having access to a superior instruction set, more registers, and a more efficient function calling convention. Improved opportunities for ASLR enhance this version's security. Another major benefit of this change comes from the fact that most programs on a modern Mac are already 64-bit apps.

In cases where Chrome was the last remaining 32-bit app, there were launch-time and memory-footprint penalties as 32-bit copies of all of the system libraries needed to be loaded to support Chrome. Now that Chrome's a 64-bit app too, we expect you'll find that it launches more quickly and that overall system memory use decreases.

With the release of Chrome 39, the 32-bit version of Chrome will be retired, left on Chrome 38, which means that some users of older Macs will not be able to use the new Chrome 39.

Along with 64-bit support, the new Chrome update includes new apps and extension APIs, plus improvements to stability and performance. There are also 42 security fixes for various vulnerabilities, which resulted in $41,500 in bounties that Google paid out to the individuals that reported the issues.

Chrome 39 can be downloaded from Google's Chrome website or installed using the Chrome browser's built-in update functionality.

Top Rated Comments

gmanist1000 Avatar
145 months ago
Can't be worse than safari. About 25% of the time safari takes 10-20 seconds to open a page.

You may need to look into your ISP.
Score: 14 Votes (Like | Disagree)
Tmelon Avatar
145 months ago
Welcome to 2009, Chrome!
Score: 11 Votes (Like | Disagree)
2457282 Avatar
145 months ago
I bought a iMac. I bought an iPad. I bought an iPhone. I don't see any reason to ruin that with Chrome. Now with handoff integration there really isn't any reason to allow Google and the NSA onto my Apple hardware.
Score: 9 Votes (Like | Disagree)
PoppaKap Avatar
145 months ago
Can't be worse than safari. About 25% of the time safari takes 10-20 seconds to open a page.
Score: 9 Votes (Like | Disagree)
johnnnw Avatar
145 months ago
One of the reasons I stopped using Chrome altogether and went to Safari primarily. Too little, too late. 32bit was a memory pig.
Safari is bad though. Looks good, but still one of the slower browsers. And huge lack of extensions for people who like that. And Adblock is bad on Safari because of API restrictions (can't block a lot of pre-roll type ads).
Score: 8 Votes (Like | Disagree)
69Mustang Avatar
145 months ago
Safari is great and all, but does no good when people use a mac AND Windows PC. If they had a valid Safari for windows that was continually updated, that would be a different story. At least with chrome, you can sync bookmarks/profiles over different devices AND platforms

This is my #1 reason for using Chrome. No matter which device I chose for browsing (OSX, Android, or Windows), my profile carries over. Plus I genuinely like Chrome.
Score: 7 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
iOS 26

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by
Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...