Is there any way to have Firefox start up differently depending on the IP Address currently being used, or by the Windows Username that has been logged in?
I would like to use my Portable Firefox at three different locations -- home, a library, and work. Each has different proxy settings (or none in the case of home.)
Currently, I am using FoxyProxy to switch between different proxy requirements at work, but I do not want to have to switch its settings each time I start Firefox from a different location or login.
you could set up 3 different portable installs of it, then click 1 depending where you are
Lead, Follow, or get out of the way.
The best tradeoff for this particular situation would be to create a proxy auto-config (PAC) file that is on your USB key.
Here is the Wikipedia entry(http://en.wikipedia.org/wiki/Proxy_auto-config) on this matter, which contains some basic examples of what you can do.
Using this, you would be able to create a script that will let Firefox does the logic and determine which proxy to use depending of the conditions you put in.