For Mac 10105 Upd: Firefox ((link)) Download

Follow these instructions carefully. Do not use the main green download button on Mozilla’s homepage—that is for modern macOS versions.

: Ensure you haven't accidentally downloaded a newer version. Check the version by selecting About Firefox in the menu. "Up to Date" Messages firefox download for mac 10105 upd

https://ftp.mozilla.org/pub/firefox/releases/78.15.0esr/mac/en-US/ Follow these instructions carefully