Version: 41.0.1 || Release Date: 2015-01-01 || License: GPL Developer: Mozilla Foundation | App Owner: tobiasps

Surf the Web, block pop-ups, and keep spyware at bay with this lean and fast open-source browser

Mozilla Firefox is a fast, full-featured Web browser. Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

Firefox 3.5 is based on the Gecko 1.9.1 rendering platform, which has been under development for the past year. Firefox 3.5 offers many changes over the previous version, supporting new web technologies, improving performance and ease of use, and adding new features for users: It is now available in more than 70 languages, includes a Private Browsing mode, better performance and stability with the new TraceMonkey JavaScript engine, the ability to provide Location Aware Browsing using web standards for geolocation, support for native JSON, and web worker threads, support for new web technologies such as: HTML5 < video > and < audio > elements, downloadable fonts and other new CSS properties, JavaScript query selectors, HTML5 offline data storage for applications, and SVG transforms.

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88 Opinions

I can't believe people use this as their primary browser. It's a poor-mans browser on OS X. Even the dev team says this. I know they are working on improving it, but they have a long ways to go. The speed is just horrid.

Still waiting on a G3 and Intel-optimized version of from el furbe...

When is was on Windows it was my favorite browser, but on Mac its just slow, bulky and an RAM-eating whore...
I really hope Firefox 3 will be useable.

I can not imagine to live without Firefox anymore... It has pushed Web browser development forward like no other. And it became one of my favorite web development tools aswell. Don´t miss to check out Firebug! (

try this...

Runs poorly on my PowerBook 1.5GHz PowerBook G4 maxed-out with RAM. I still keep it around for extensions like DownThemAll! and sites like Google Calendar, Documents, etc. (though supposedly Google willl work with Safari soon).

I really really want Firefox to be just as great on OS X as it is on Windows. After months of using 2.0, it just doesn't measure up. The XUL-based interface behaves oddly, and is less responsive than Cocoa. Perhaps this is partly my fault for getting gung-ho with extensions, but it's got a huge memory footprint.

I switched to using Camino as my primary several months ago and have been pretty happy with it. There are still a few extensions I'd really like to have (Tab Mix Plus for contextual and draggable tabs and scrolling tab bar, web developer toolbar, google notebook) but I've mostly learned to go without them. I find that it's worth it for the speed you get with Camino. It behaves like a good Cocoa app should, it starts fast and stays fast, and you can even extend it a bit with prefPanes and applescripts.

The only reason I use Firefox (well I actually use Bon Echo, the optimised Mac version) is to display websites that don't work in anything else.

My tip to people worried about how FF looks, check out UNO ( It replaces a lot of OS X's UI to how (I, and many believe) OS X should look. it's much more consistent than ShapeShifter's themes, and can now change Mozilla apps like Firefox, Camino, Thunderbird etc., so that everything in the OS is consistent. also removes many of the uglier things in Aqua like pinstripes.

Basically, if you use the right FF theme so the buttons look OS Xish, FF can look very like Safari. Also check out the optimised builds for FF, they run a bit faster, and usually load quicker.

Hope that helps at least someone out.


even cooler with Adam Betts' kickass firefox icon

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