To change the default browser application on your Infinix smartphone, follow these steps:
1. Open Settings on your Infinix smartphone.
2. Scroll down and look for options related to Applications or Default Applications (Apps or Default Apps).
3. In the Applications or Default Applications menu, look for the option related to Browser Applications or Default Browser.
4. Select this option, and you will see a list of browser apps installed on your device.
5. Select your preferred browser application from this list. If you don’t have an alternative browser installed, you can download and install it from the Google Play Store first.
6. Once you select the browser you want to use as your default browser, your device will start using that browser automatically to open web links.
Please note that these steps may differ slightly depending on the version of Android used on your Infinix device. However, generally, you will find settings to change the default apps in the Settings or Applications menu.