http://www.mozilla.o.../profile#locateIn order to create a new profile, you use the Profile Manager. To start the Profile Manager in Windows, follow these steps:
1. Close Firefox completely (select File > Exit from the main menu of Firefox).
2. Select Start > Run... from the Windows Start menu.
3. Enter firefox.exe -ProfileManager and press OK.You should now see the Profile Manager window, shown in the screenshot to the right.
From the Profile Manager you are also able to remove and rename profiles. Be very careful when deleting profiles; if you created the profile in an directory that already existed, the entire directory will be removed!
Click on the Create Profile... button to start the Create Profile Wizard. Click Next and enter the name of the profile, e.g. your name or something descriptive.
You can also choose where on the disk you want the profile to be stored, which is useful if you plan on exporting your settings to another computer or setup in the future. If you choose a custom location for the profile, always create a new/clean directory and select that directory.Finally, click Finish to have Firefox create the new profile.
If you want to run Firefox without any Addons , you just go to START > PROGRAMS > MOZILLA FIREFOX > and choose the Program MOZILLA FIREFOX (Safe Mode).
Fx will run as a Default Installation without Theme , Addons , whatever . This would seem the barebones setup , can't see it would be quicker than my Uber Geeked Profile however ?
Fastefox Addon - utilises some MozDev suggestions for pipelining , cache size , and speeds up performance . If you have a fast connection really I can't see you should use such an App though as it can seriously affect the visited websites Bandwidth .
Some cool suggestions already listed on G2G Forum Here