But for serious privacy work in 2024? You really need to upgrade your OS or use Tails (a USB-bootable OS). The internet has moved on, and so have the exploits.
I tested this on a Mid-2012 MacBook Pro running 10.11.6. Loading the BBC, DuckDuckGo’s Onion service, and even Reddit worked fine. However, modern JavaScript-heavy sites (looking at you, Discord and New Twitter) will feel sluggish or may fail to render properly. tor browser for el capitan
(Note: The en-US indicates English. If you need another language, browse the folders.) But for serious privacy work in 2024