In Firefox's relentless battle to take on the impregnable Chrome, they've hit a huge milestone with version 57 of their browser. The beta for it is out now for download and includes the new Servo engine whose performance couldn't be more heartening: Firefox is now twice as fast as it was a year ago. Our software library provides a free download of Firefox 4 46.0.1 for Mac. The size of the latest installation package available for download is 26.8 MB. The actual developer of this free Mac application is Mozilla. The unique ID for this program's bundle is org.mozilla.firefox. The software is included in Developer Tools. Home Internet Utilities Browsers Firefox Download. Downloading Firefox. If your download didn't start. Create Account and Enjoy ad-free MacUpdate experience forever. Discover New Mac Apps. Save money with MacUpdate Promo & keep your Mac software secure and up-to-date with MacUpdate Desktop.
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.
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- 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.
- 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.
- 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.
- After dragging Firefox to the Applications folder, hold down the control key while clicking in the window and select Eject 'Firefox' from the menu.
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.
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 .
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 .
Many recent browser versions include their own, native PDF plug-ins that automatically replace the Acrobat and Reader plug-in from Adobe. Installing Firefox 19 or later, for instance, can result in your Adobe plug-in being disabled and replaced. Browser plug-ins typically do not support all PDF capabilities or offer comparable features. If you experience the following problems, you may need to revert to the Adobe plug-in:
- Parts of a PDF don’t display
- Poor performance or image quality
- Large files sizes when printing to PDF
- 3D models don't render
- Embedded SWF files don't play
Manually change your browser preferences so that it uses the Acrobat or Reader PDF viewer.
In the Content Type area, scroll to Portable Document Format (PDF).
Click the Action column next to Portable Document Format (PDF), and then select an application to open the PDF. For example, to use the Acrobat plug-in within the browser, choose Use Adobe Acrobat (in Firefox).
Select Portable Document Format (PDF) from the Content Type Column.
Click the Action column next to Portable Document Format (PDF), and then select Use Adobe Acrobat NPAPI Plug-in.
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Chrome and Acrobat are no longer compatible. For more information, see Change in support for Acrobat and Reader plug-ins in modern web browsers.
In the Finder, select a PDF, and choose File > Get Info.
Click the arrow next to Open With to expose the product menu.
Choose either Adobe Acrobat or Adobe Acrobat Reader from the application menu.
When asked if you want to change all similar documents, click Continue.
In the Preferences window, click Security, and then click Website Settings next to Internet plug-ins.
Select Adobe Reader in the list of plug-ins. Under When Visiting Other Websites, in the drop-down list choose Allow Always and click Done.
The browser is now set to use the Adobe Reader plug-in to display PDFs.