Open your Applications folder, locate Firefox, and double-click to launch it.
For users on Mac OS X 10.10.5 (Yosemite) , the journey to a modern browsing experience has a specific finish line. Since 2021, Mozilla has officially ended support for this operating system version, but there is still a way to get a compatible version running. Apple Support Community The Recommended Version: Firefox 78 ESR
Instead, the most recent and secure version available for your system is . Why You Need a Specific Version firefox download for mac 10105 upd
:To prevent Firefox from trying to update to an incompatible version, you should immediately disable automatic updates:
Firefox may frequently notify you that updates are available, even though your OS cannot process them. Apple Support Community The Recommended Version: Firefox 78
After successfully copying Firefox to your Applications folder, you can eject the Firefox.dmg disk image. To do this, click the eject icon next to the Firefox disk image in Finder’s sidebar, or right-click on the disk image on your desktop and select .
To avoid corrupted packages or malware from untrusted mirror portals, you must source this specific version directly from Mozilla's historical server distribution network. To do this, click the eject icon next
Open any web browser on your Mac—such as Safari, which comes pre-installed on macOS—and navigate to the official Firefox download page at:
Click the (three horizontal lines) and select Settings .
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: This version is no longer receiving security updates as of October 2021. Functionality