Firefox 10.4

We're not only compatible with Mac OS X 10.4 and 10.5, but we also build our browser specially optimized for your G3, G4 or G5, add AltiVec TM JPEG, HTML and WebM decoding acceleration for G4 and G5 Macintoshes, and soup up JavaScript performance with IonPower, our best-in-class just-in-time PowerPC script compiler. One of our four versions is. Just in time for summer: Betaflight 4.2. Just in time for summer for most of us, and in time for the end of COVID-19 related lockdowns in a lot of places, we are proud to announce the release of Betaflight 4.2.0! In 2010, Mozilla's Mike Beltzner announced that the forthcoming Firefox 4 would not be released for Power Macintosh computers, compatibility with Mac OS X Tiger having already been removed, making Firefox 3.6 the last supported release of Firefox on the older architecture and platform. Mozilla stopped making PowerPC-compatible universal builds of Firefox 4 with beta 7.

If you want you can trash the current version of Firefox from your Apps folder and re download Firefox from the site. Another little trick might be to restart your Mac and then try downloading Firefox. I have 10.4.11 as well and have no problems with Firefox. Your RAM is not the problem. If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit. If you see “(32-bit)” and are running Firefox 56.0.1 or newer, then your computer may not meet the minimum memory requirement for 64-bit (3 GB RAM or more).

This article explains how to download and install Firefox on a Mac.

  • If you are updating from a previous version of Firefox, see Update Firefox to the latest release.
Note: This article only applies to Mac. For instructions to install Firefox on Windows, see How to download and install Firefox on Windows.For instructions to install Firefox on Linux, see Install Firefox on Linux.
Make sure your Mac meets the System Requirements for Firefox.

If you use an old version of OS X, see these articles for more information:

Note:Firefox version 83 and higher support both Intel-based Macs (x86 architecture) and Apple devices with the new ARM-based CPU (Apple Silicon). Firefox 83 runs on new Apple Silicon devices by way of Apple's Rosetta 2 emulation software and thus performance speeds may suffer. Later versions of Firefox are expected to run natively (not under emulation).
Firefox

To download and install Firefox:

  1. Visit the Firefox download page in any browser (for example, Safari). It will automatically detect the platform and language on your computer and recommend the best version of Firefox for you.
  2. Click .
    • Note: If you want to have a choice of the language for your Firefox installation, click the Download options and other languages link instead.
  3. Once the download has completed, the file (Firefox.dmg) may open by itself and pop open a Finder window containing the Firefox application. Drag the Firefox icon on top of the Applications folder in order to copy it there.
    Note: If you do not see this window, open the Firefox.dmg file that you downloaded.
  4. After dragging Firefox to the Applications folder, hold down the control key while clicking in the window and select Eject 'Firefox' from the menu.
Complete the steps above before running Firefox. Do not run Firefox directly from the Firefox.dmg file, as this can result in issues such as lost data and settings.

Firefox 10.3 Download

Tip: You can add Firefox to your dock for easy access. Just open your Applications folder and drag Firefox to the dock.

Firefox is now ready for use. Just click on its icon in the dock or Applications folder to start it.

Firefox 10.6.8

When you first start up Firefox, you will be warned that you downloaded Firefox from the Internet. Because you download Firefox from the official site, click .

Firefox 10.0.12esr

Upon installation, Firefox will not be your default browser, which you'll be notified about. That means that when you open a link in your mail application, an Internet shortcut, or HTML document, it will not open in Firefox. If you want Firefox to do those things, click . If you're just trying out Firefox or simply do not wish to set Firefox as your default browser, click .