There's something worse: only the enterprise edition respects certain group policies which it doesn't in the pro, all related to default application settings an

There's something worse: only the enterprise edition respects certain group policies which it doesn't in the pro, all related to default application settings and such. Same with Office 365 subscriptions, you need some higher level than for example business standard to have it honor the "open links with system default browser" group policy. Unfortunately not covered in the Mozilla report.