You can copy and paste the following command in Terminal.app to see the Spotlight importers currently known by Spotlight (and therefore by FoxTrot):
And this command to search Spotlight importers present on your Mac in the standard locations:
find /Library/Spotlight /System/Library/Spotlight ~/Library/Spotlight /Applications -iname '*.mdimporter'
If some importers are found by the second command and not the first one, here are some of the possible causes:
- the application owning them has never been launched (app may be quarantined, or not fully installed)
- the application can be incompatible with your Mac or your version of macOS (32-bit…)
You may try this command to tell Spotlight to load the importer, when it is bundled inside an application; replace {appPath} with the actual path of the application (ending with .app):
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -f "{appPath}"