why to Installing extensions in Fireworks?

Installing extensions in Fireworks
Extensions installed into Fireworks place their files (including associated MXI files) within the Fireworks App Config folder. Fireworks doesn’t distinguish between administrative users and standard users in regard to installing and managing extensions. Extensions are always managed for all users without regard to the current user.
The only instance where an administrator might be required to install an extension for a user is when the user doesn’t have sufficient permissions to install files in the Program Files folder in Windows or the Applications folder on the Macintosh. This might be the case if the user’s permissions only allow them to save files on a system, but not to install or remove applications.