Now you can try TraceMonkey by downloading firefox-minefield.
But since minefield crashes, how do I enjoy its speed and browse my important webs in a safe Firefox?
You can run two versions of Firefox by following these steps:
Create a new profile for firefox.
Ubuntu: firefox -profilemanager -no-remote
Windows: Goto Start >> Run >> type: firefox.exe -profilemanager -no-remote
This will start up the profile manager. Create a profile, I've called it 'minefield'.
Then we need to launch Firefox adding
"-P minefield -no-remote".
Ubuntu: In the installadion dir run
"firefox -P minefield -no-remote &"
Windows: Righth click on a Minefield shortcut, update the target field to look something like this: "C:\Program Files\Minefield\firefox.exe" -P