If this fixes it and you no longer experience Viber won’t open on Mac, re-enable the firewall and use alternative anti-virus software.

Step 4: Once it is deactivated, check if Viber will open and if it functions properly. Step 3: Click on “Turn Off Firewall” and wait a few seconds. Step 2: Select the “Security & Privacy” option and then click the “Firewall” tab. Step 1:Click on the Apple icon at the top-left of your display and click “System Preferences”. That being said, we are only going to be temporarily deactivating it to check whether or not the issue is because of your Mac blocking a Viber connection. The idea of deactivating your firewall can be daunting and worrying to do. Therefore, if you have this feature enabled, the problem is elsewhere. It’s likely that there’s a problem with the app, however, most people activate the auto-update feature so that all of their apps are updated automatically. Step 3: Once it’s downloaded, launch the installation file and follow the setup steps to have the latest Viber version installed. Step 2: Go to the Viber website and redownload the most recent Mac version via clicking here.

Step 1: Uninstall Viber by going to the file path “/Library/ApplicationSupport/ViberPC” and deleting the entire ViberPC folder. Simply updating Viber will make sure that there are no problems with the app and if any known problems were patched, updating will fix them. This is the first thing that you should do whenever you run into a problem with any type of software-related problem. Tips: What If Lost Viber Data on iPhone?.

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