If this doesn’t work, the last solution is to try making a simple edit to the ist file. To do this click on the Apple logo in the top left of your desktop and select System Preferences, Security & Privacy and then select the Firewall tab and make sure it is switched off. If you still have problems with Viber not working on your Mac, try the following.ĭeactivate your Mac Firewall if it’s switched on. This works for most people but not for others. You must then uninstall and reinstall Viber on your iPhone. When you’ve deleted the ViberPC folder, simply reinstall Viber by downloading the latest version of Viber. Note that this will temporarily delete your conversations and chats until you reinstall Viber and it starts to sync again. If you have problems doing this, use AppCleaner to remove all files associated with Viber before reinstalling. To reveal the Library folder on your Mac, make sure Finder is selected, click Go and hold down the ALT key and you’ll see the Library folder appear in the drop down menu. You can however do it manually by going to /Library/Application Support/ViberPC and delete the ViberPC folder. We recommend using AppCleaner to uninstall Viber on Mac because it’s important to remove all files. Uninstall Viber by moving the application to the Trash.

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