Alle antwurden (1)
https://support.mozilla.org/en-US/kb/firefox-mac-osx-users-esr
Unless your hardware allows you to update your macOS to 10.12, 10.13, 10.14 so you can use the current Firefox 115 ESR, the most current version of Firefox you can run on macOS 10.11 is Firefox 78.15.0esr.
Jo moatte jo oanmelde by jo account om op berjochten te antwurdzjen. Stel in nije fraach as jo noch gjin account hawwe.