Rated 5 out of 5 stars

If you had Unplug for FF2 and have not uninstalled it, you can simply change the install.rdf file as described by matasoj without having to worry about downloading and reinstalling it. On an XP machine the file is located at: C:\Documents and Settings\{username}\Application Data\Mozilla\Firefox\Profiles\{profilename}.default\extensions\unplug@compunach. The Application Data folder is hidden. Also, I had to make an edit to the extensions.ini file located in the {profilename}.default directory. The file contains the paths to all of the extensions. I had to add the path for the Unplug extension. It's currently working for me now.

This review is for a previous version of the add-on (1.6.06).