The is a very specific necessity. By downloading Firefox 78.15.0 ESR directly from Mozilla’s FTP server , you can breathe another year or two of life into your Mac running OS X Yosemite 10.10.5.
If prompted to replace an existing version of Firefox, click . Key Technical Specifications
If your underlying hardware structure supports a cleaner upgrade path, staying on Yosemite 10.10.5 is heavily discouraged due to open network exploits. firefox download for mac 10105 upd
Mozilla no longer links old versions directly. Use the :
Always download Firefox exclusively from the official Mozilla website. While third-party download portals may offer the same software, they could potentially bundle unwanted programs, malware, or modified versions of Firefox. For your safety and security, trust only the official source. The is a very specific necessity
If you are using an older Mac running , you may find that the latest version of Firefox is no longer compatible with your system. To keep browsing, you will need to download a specific legacy version designed for older operating systems. The Correct Version for OS X 10.10.5
Locate the downloaded .dmg file in your folder and double-click it. While third-party download portals may offer the same
Before downloading, let’s break down the keyword:
Once you are on the download page, simply click the prominent download button. The website will automatically select the appropriate version for your Mac.
The latest and final version of Firefox that works on Mac OS X 10.10.5 is Firefox 78 Extended Support Release (ESR) Mozilla Support Current Status