Firefox 3 fixes what's broke

With its latest version, Mozilla's browser continues to raise the bar for what Web browsers should be.

The Mozilla Foundation is celebrating the arrival of Firefox 3 with a worldwide party -- and an attempt to set a new world record for the most downloads ever of a single software program. OK, so that's silly and extremely geekish, but what the heck? Why not kick up a fuss?

Especially because Firefox 3 is the best Web browser I've ever seen. And I've been using the Web since before there were Web browsers.

As far as I'm concerned, Firefox has been setting the standard for Web browsers since it first appeared in 2004. At the time, Microsoft's Internet Explorer ruled the Web, and it did a lousy job. But unless you were savvy enough to try alternatives such as Opera -- or were still hoping that Netscape would get its act together -- you were stuck with IE.

Firefox was a breath of fresh air. It was everything that IE wasn't. It was secure and fast, and it supported extensions to transform the browser from a mere utility to the heart of the modern-day computing experience.

For a while, though, Firefox went into a decline. Mozilla kept adding features, but at the expense of memory, stability and performance. At the same time, Microsoft had finally been forced to improve Internet Explorer. Firefox was still better, but it was no longer that much better than IE 7.

With this latest version, however, Firefox is back on track.

Resolving memory issues

For example, one of the ways that Firefox 2 annoyed people was the way it handled memory. The longer their browsers were open, and the more pages were loaded, the more memory was used. The result for some users -- especially those whose systems didn't have much memory to begin with -- was that performance would drop to a crawl.

They also lost stability. With Firefox 2.x, I was averaging a complete Firefox failure -- all browser windows either freezing or closing down -- once every two days.

What was happening was that Firefox's bad memory management habits were zapping me. For example, Firefox 2.x used different-sized chunks of memory. Then, as it constantly grabbed and released memory, its memory map began to look like a beaten-up jigsaw puzzle. Here a hole, there a troublesome spot where someone had torn off part of a piece to make it fit, and so on.

In addition, Firefox 2.0 kept full-size copies of images in memory. When you displayed a JPEG or any of the other compressed picture formats, Firefox kept the full-size uncompressed images in memory even if you weren't currently looking at them. Since a single 100k image can eat up a megabyte-plus of memory, this old way of handling images can waste memory quickly.

Mozilla's engineers seem to have fixed that -- or at least improved it -- in Version 3. Now, if you're not looking at an image, it's been saved in memory in its original compressed format. They've also worked on the memory map issue.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.
Steven J. Vaughan-Nichols
Show Comments

Essentials

Mobile

Exec

Sony WH-1000XM4 Wireless Noise Cancelling Headphones

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?