To make sure that you have the latest version of Safari, you need to make sure that you have the latest version of macOS on your device. Updating your operating system will also update apps that came installed on your device, like Safari.

Google Chrome

1. Open Google Chrome.
2. Click the kebab menu button.
3. Hover over Help and then click About Google Chrome.
4. Google Chrome will check for updates and download them automatically.
5. When the download is complete, click Relaunch.

Mozilla Firefox

1. Open Mozilla Firefox.
2. Click the hamburger menu icon.
3. Click Preferences.
4. Under Firefox Updates, click Check for Updates.
5. Mozilla Firefox will check for updates and download them automatically.
6. When the download is complete, click Restart to Update Firefox.