For example this objective-c code lists all applications that can open https, can i do the same using applescript?
#import <Foundation/Foundation.h>#import <ApplicationServices/ApplicationServices.h>
int main (int argc, const char * argv[])browserBundleIdentifier = (NSString )CFArrayGetValueAtIndex(availableBrowsers, i);
No, you can’t do it directly from AppleScript. You’d need to add an Objective-C class with code similar to that you posted, and call it from your script.