As a web developer, I currently have three copies of Firefox (each
with its own profile, due to incompatibilities among add-ons between
versions) -- 2, 3, and 3,5. I also have several other profiles that I
use from time to time.
After updating the includes for a script or two (then copying it among
my various FF profiles) or updating the a script itself (and having to
distribute the changes to the various FF profiles), I decided to try
to see if it's possible to have a "master" gm_scripts directory shared
among multiple profiles.
Of course, I wouldn't be writing this if it weren't possible.
I'm on a Mac, so your exact steps may be a bit different.
First, I moved the best copy of gm_scripts directory into a common
location that is shared among all the profiles. On a Mac, it is here:
/Users/dland/Library/Application Settings/Firefox/gm_scripts
Then, in each of the profile directories, I deleted gm_scripts and
replaced it with a "symlink" (a Un*x "alias") so that Firefox thinks
the folder is actually inside the profile.
Now, if I "Manage User Scripts" from any Firefox browser and make
changes (changing the includes or excludes, enabling or disabling
scripts, or even editing scripts), I'm doing it for all my Firefox
profiles at once.
Dave