- Free mozilla firefox 52.0.1 esr download. General downloads - Mozilla Firefox ESR by Mozilla and many more programs are available for instant and free download.
- Download Firefox 88.0.1 for Mac for free, without any viruses, from Uptodown. Try the latest version of Firefox 2021 for Mac.
- The 64 bit version of Firefox has never supported NPAPI, and Firefox version 52ESR is the last release to support the technology. It is below the security baseline, and no longer supported. Java applications are offered through web browsers as either a Java Webstart application (which do not interact with the browser once they are launched).
- Download Mozilla Firefox Nightly for Mac to get a sneak peek at our next generation web browser. Mozilla Firefox Nightly has had 4 updates within the past 6 months.
Installing Firefox on Mac. To download and install Firefox: 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 Download Firefox.
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.
If you use an old version of OS X, see these articles for more information:
To download and install Firefox:
- 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 .
Firefox Legacy
Download Firefox For Mac 5200
Firefox Legacy is an unofficial modified version of Mozilla Firefox that works on older Mac OS X versions, including 10.6 Snow Leopard, 10.7 Lion, and 10.8 Mountain Lion.
Download it now and breathe new life into your old Mac.
OS X 10.8 Mountain Lion
Current version for OS X 10.8 Mountain Lion: 71.0p2 (2020-09-15)
IMPORTANT NOTE ABOUT UPDATING TO v71: A new Firefox profile will be created when you update from earlier versions to version 71.0. To restore your previous data, type 'about:profiles' in the address bar, then find your previous profile (if you can't tell which, try each one) and set it as default. Then, restart Firefox Legacy. I apologize for the inconvenience; the cause of this issue is not known.
OS X 10.7 Lion
Current version for OS X 10.7 Lion: 68.12.0p3 (2021-01-24)
Now featuring support for numerous newer web standards, including Push, Service Workers, Feature Policy, ResizeObserver, Promise Rejection Events, more of the Animations API, and several CSS features. This should improve compatibility with many websites.
For security and privacy reasons, starting in version 68.12.0p3, support for TLS 1.0 and 1.1, HPKP, and the Battery API is disabled.
OS X 10.6 Snow Leopard
Download Firefox Esr 52 Mac
Only Firefox 52 is available for OS X 10.6 Snow Leopard; it will not be updated to a recent version due to technical limitations of the OS.
Note: the program is called 'Nightly' due to licensing restrictions prohibiting the use of the official Firefox branding.
Current version for OS X 10.6 Snow Leopard: 52.9.1p1 (2020-04-11)
Firefox Legacy speaks your language!
Any of the language packs for the matching official Firefox version are supported.
- List of language codes (to help you locate the right file to download)
Known Issues
- Small problems with displaying right-to-left languages on OS X 10.7
- The crash reporter does not work on OS X 10.7 or 10.8 (it itself crashes)
- A useless empty share menu is visible on OS X 10.7
- The sandbox (a security feature intended to protect you from malicious websites) does not work, and has been disabled
- On OS X 10.7, the browser crashes when the camera or microphone are used
- WebGL does not work on computers with GPUs not supporting OpenGL 3.0 (many 2006-2007 Macs)
- Some buttons are invisible on Google Calendar, WordPress, and other sites that use font-based icons
- DRM (Encrypted Media Extensions/Widevine) does not work
- Version 68.12.0 only: Screen capture does not work and has been disabled
- Version 71.0 only: The progress bar is not visible on the icons of downloading files in the Finder