IT WORCKED!! :D Thank so much for the tip, never knew such option even existed, now it works seamlessly in both crome and firefox :)

Hi, thanks for the response. Yes, Construct 3 as a whole works within a web browser. I primarily use it with Google Chrome. Regarding the gamepad tester that you suggested, just tested it out. Surprisingly, The gamepad tester application seems to dedect my 8BitDo Controller in Safari when it's connected using Bluetooth. If I try to open the same tester in other browsers such as Google Chrome or Firefox, it doesn't seem to detect it, no matter if it's through USB-C or Bluetooth. The good news is, when I try to open my projects in Safari within Construct 3, amazingly, it seems to detect the controller when in preview mode. As mentioned earlier, I also have Nintendo Switch Joy-Cons with me. When I tested them, they seemed to detect and work properly with Construct 3's preview mode in all browsers. The thing to note is that previously, I had a Windows system, I never quite encountered this kind of controller issue in any of the browsers while using the 8BitDo Ultimate 2.4G Wireless Controller. As such, I believe the issue lies with the lack of support for third-party controllers on browsers such as Chrome or Firefox on mac. Though the BitDo Ultimate controller seems to detect and work properly in Safari, I'm not sure if I will be able to continue using it on Safari just because I'm currently encountering different issues while using Construct 3 in it. When I run a project in preview mode, it executes properly, but if I try to run the same project again while in preview mode, it doesn't seem to load. Guess I will probably have to bring this up in the Construct 3 forums separately. In the meantime, if anyone can suggest a solution enabling controller support for Chrome/ Firefox or how i can fix the mentioned loading error, that would be great. Thanks once again.