On August 2, 2016, Firefox 48.0 was released. It is scheduled to be replaced by Firefox 49.0 on September 13, 2016. At that point, Mac users using OS X 10.6 Snow Leopard, 10.7 Lion, and 10.8 Mountain Lion will be left behind by the current versions of Firefox. It will be a sad day, as Firefox is the last major browser to support Mac OS X 10.6 through 10.8. Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8. This article applies to Mac users only. Starting with Firefox version 49, Firefox requiresMac OS X 10.9 (Mavericks) or higher. Visit this Apple Support pageto find your Mac OS version. If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade.

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.

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Last Version Of Firefox For Mac Os 10.7.5 10 7 5 To 10 9

  1. Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8. This article applies to Mac users only. Starting with Firefox version 49, Firefox requiresMac OS X 10.9 (Mavericks) or higher. Visit this Apple Support pageto find your Mac OS version. If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version that Apple supports.
  2. The Firefox source code was taken and compiled in order to specifically run for 64-Bit Mac computers. To make Waterfox for macOS stand out from the crowd, it was compiled with many optimizations so that it will perform faster and more efficiently than simply compiling Firefox as a 64-Bit program.
  3. Functions can be added through add-ons, created by third-party developers, of which there is a wide selection, a feature that has attracted many of Firefox's users. Mozilla Firefox is a cross-platform browser, providing support for various versions of Microsoft Windows, Mac OS X, and Linux. Firefox Features. Improved Tabbed Browsing; Spell Checking.
  4. For example you can click on 10.7 under the Mac OS X heading and then choose Safari in the browsers section and see that Safari 6 is the only version supported. However, if you select just 10.7 you can see that there is a lot more versions available for Google Chrome, Firefox and Opera.
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:
Macos
  1. Visit the Firefox download page in any browser (for example, Apple Safari). It will automatically detect the platform and language on your computer and recommend the best version of Firefox for you.
  2. Click the download button to download Firefox.
    • Note: If you want to have a choice of the language for your Firefox installation, select the 'Download in another language' link under the download button instead.
  3. Once the download has completed, the file (Firefox.dmg) should 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, double-click the Firefox.dmg file that you downloaded to open it.
  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.

Firefox For Mac Os Lion

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.

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.

Last Version Of Firefox For Mac Os 10.7.5 Upgrade

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, you can click .

Last Version Of Firefox For Mac Os 10.7.5 To Mountain Lion

Last Version Of Firefox For Macos 10.7.5

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 to set it as your default browser. If you're just trying out Firefox or simply do not wish to set Firefox as your default browser, click .