The first supports ActiveX and works in all popular browsers (Chrome, Firefox, Opera), and the second one is designed exclusively for Internet Explorer (for Edge, the ActiveX version will work).
Like the usual Flash Player, Debugger is distributed in two versions.
In addition, she often "hangs" her browser, forcing him to finish his work through the Task Manager. We recommend using it, because the Debugger version loads the system much harder and slows down the playback of Flash content. If you are not a developer and are looking for a standard Adobe Flash Player, you can download it from here. All detected errors, conflicts and falls are recorded in the reports. It has functions for creating detailed reports on the work of created applications. Adobe Flash Player Debugger is a developer's version of Adobe Flash that helps to analyze, identify and fix bugs in Flash and Flex projects.