It's a .jar file with an image of a cup of coffee on it. The Apple menu icon is in the top-left corner of the screen. If you don't receive an error message, skip ahead to the "Make sure the 'Install client' box is checked" step. It's near the top of the drop-down menu. This is a house-shaped icon in the top row of the System Preferences menu. It's in the bottom-left corner of the window. You may have to enter your administrator password before continuing. This button is next to the Forge file name, which will be something like "forge-1.12-14.21.1.2387-installer.jar". If Security & Privacy doesn't show this option, click the General tab at the top of the page. This will open the Minecraft Forge installer window. If it isn't, click the box or circle next to "Install client" before proceeding. If prompted to install Java, first click More Info... on the pop-up window, click Download below Java, click the Java .dmg file, double-click the Java .pkg folder, and follow the on-screen instructions. It's in the bottom-right corner of the page. Doing so will install the client files and folders for Minecraft Forge. You can change the destination folder by clicking ... above OK and then selecting a new folder. This will complete the installation process.
फॉर्ज फ़ाइल को डबल-क्लिक करें: एरर मैसेज पर OK क्लिक करें, फिर क्लिक करें: System Preferences Security & Privacy लॉक आइकन को क्लिक करें: Open Anyway पूछे जाने पर Open क्लिक करें: सुनिश्चित करें कि "Install client" बॉक्स चेक है: OK पूछे जाने पर OK क्लिक करें: