

Since Portable Firefox isn’t installed and just resides in its own folder, I could load multiple versions of Firefox.This allowed me to streamline my main browser down to just the add-ons that I use frequently. I would load this browser up when I needed to explore the DOM in detail, debug layout issues, debug Javascript, etc. Since having a large variety of add-ons in Firefox has a tendency to slow things down, I had another browser that included all the major development tool add-ons.If I wiped the slate clean on this browser, nothing was lost. It also gave me a clean cookie and authentication slate so I could test sessions from scrath without clearing my main browser’s history, sessions, etc. This was a great browser to use when I would test new code to make sure that it ran well on a stock Firefox. One install that was just the default install with no additional tweaks or add-ons and would have all cached data, authenticated sessions, and cookies cleared when closed.Here are a few ways that I use multiple installs: Why would I want to run more than one Firefox at a time? For me, the reason is that it eases development.

This allowed me to have tailored installations with different sets of plugins and features. With Portable Firefox, I could do multiple installations of Firefox on my system that could be customized to run concurrently with other installs of Firefox. When Windows was my main OS, I was a big fan of Portable Firefox.
