If your primary goal is to browse the modern web on a vintage computer rather than using Firefox 3.6 specifically, consider looking into community-maintained retro browsers. Projects like , New Moon , or K-Meleon are specifically backported to run on old operating systems while retaining the updated security protocols required to load modern web pages. If you want to customize your setup further, tell me: What operating system are you planning to install this on?
) to create a dedicated profile so it doesn't corrupt your modern bookmarks or history. download old version of mozilla firefox 3.6
Firefox 3.6 was designed for hardware and operating systems from the late 2000s: Firefox 3.6 Release Notes - Mozilla If your primary goal is to browse the