Download Player from the official website
Open roblox.com in a modern browser and sign in to your account. Go to the selected experience and click Play. If Player is not yet installed, the site will offer installation. Use this route to avoid confusing the application with the Studio editor. Save the address of the official help: after installation, it will be useful when checking the launch again.
Allow the installed application to run
After installation, return to the game page and click Play again. The browser may ask which application to open the link: select Roblox and confirm launch. If the permission has already been saved, the next start may take place without such a window. Check if the Player itself and the selected world have opened before reinstalling the application.
If Firefox doesn't find Roblox on Mac
The Roblox Help for Firefox on macOS lists the app selection for roblox-player links. Using Finder, you can go to /Applications/Roblox.app/Contents/MacOS/Roblox.app and select the application. These instructions apply to your specific browser and system combination. Do not enter the Mac path into Windows or change other settings if Player already opens normally.
Player and Studio solve different problems
Player runs published worlds, Studio is for development. If the goal is to play with friends, installing an editor alone doesn't answer that goal. After a successful start, check the controls and connection in one selected world. If the error remains, write down the system, browser, message text and stage: downloading, opening a link or logging into experience. Using this information, it is easier to choose the appropriate official support section.
Sources and checks
Guides are automatically translated from Russian; interface labels may differ. The Russian edition is the original.