Using an older browser version comes with distinct functional limitations. Use these strategies to maximize performance: Managing Security Certificates
Some specialized browsers (like Chromium-based forks) are specifically built to keep older Mac OS versions active.
Your version of Firefox might be outdated and relying on Rosetta for compatibility with Apple Silicon Macs. firefox download for mac 10105 upd
https://archive.mozilla.org/pub/firefox/releases/
If you need a different language, navigate to the main directory and select your preferred regional folder. Installation Steps Download the .dmg file from the link above. Using an older browser version comes with distinct
A finder prompt window will open displaying the Firefox logo next to your local Applications directory shortcut.
Since the browser engine is outdated, you need to block malicious scripts. Install from the add-ons store. It will still work on version 78. https://archive
When Apple stopped updating OS X 10.10 Yosemite, third-party software support eventually followed. For users searching for the definitive download for , understanding the cutoff timeline is critical: Final Compatible Release : Firefox 78.15.0esr Release Channel : Extended Support Release (ESR) End of Life (EOL) Date : October 5, 2021
: You can download this specific legacy version directly from the Mozilla FTP Archive. How to Install
: Click on the file named Firefox 78.15.0esr.dmg to begin downloading the disk image directly to your Mac.
Double-click the downloaded file to mount the disk image.