Sync Pro app not working? crashes or has problems?

Sync Pro Status

Last Updated on 2015-06-10 by HU YANRUI

I have a problem with Sync Pro

Are you having issues? Select the issue you are having below and provide feedback to Sync Pro.

Read all Solutions

Fix Now in One Click

User reports:
No current problems

User reports 0

Have a Problem with Sync Pro for Firefox- Sync your desktop browser Bookmark, History, Open Tabs with Mobile? Report Issue

Common Sync Pro Problems & Solutions. Troubleshooting Guide

Complete guide to troubleshoot Sync Pro app on iOS and Android devices. Solve all Sync Pro app problems, errors, connection issues, installation problems and crashes.

Table of Contents:

Sync Pro iPhone Issues and Solutions

Sync Pro iOS app crashes, not working, errors
Sync Pro iOS app network issues
Sync Pro on iOS has black/white screen

Sync Pro Android App Issues and Solutions

Sync Pro has errors/crashing/not working
Sync Pro server network connectivity issues
Sync Pro has black screen

Sync Pro iPhone Issues and Solutions

Here are some helpful workarounds that should work whenever Sync Pro app keeps crashing or doesn't work as expected on your iPhone 14, 13,12,10,8,7,6, SE,XS,XR.

How to fix Sync Pro app crashes or not working on Iphone (iOS):

Close and restart the Sync Pro app on iPhone
Update Sync Pro app to the Latest Version for iOS
Uninstall and reinstall Sync Pro iPhone app
Update your iPhone to the latest iOS version

Fix Sync Pro on iPhone unable to connect to server/internet connection issues::

To resolve Sync Pro network issues, Reset phone network settings:
1. On iphone, Goto "Settings" » "General" » "Reset" » "Reset Network Settings".
2. Enter your device passcode. Then confirm "Reset Network Settings".

Turn off your VPN:
1. Goto "Settings" » "General" » "VPN".

Fix Sync Pro black/white screen (blank screen) on iPhone:

Follow the Sync Pro iOS app troubleshooting guide Here →

Sync Pro Android App Issues and Solutions

Fix Sync Pro not working on Android, crashes, errors or is unresponsive:

Follow these steps to resolve intermittent Sync Pro app issues:

Force Stop the Sync Pro App
1. On android, goto "Settings" » click Sync Pro app. » click "Force Stop".

Update Sync Pro to the latest version on PlayStore

Clear Sync Pro App Cache and Data:
1. On your device, goto "Settings" » click "Apps" » select "Sync Pro app" » click "Storage" » click "Clear Data" option. This Clears both data and cache.
2. Relaunch Sync Pro.

Fix Sync Pro unable to contact server/ Sync Pro internet connection errors on Android:

This issue is usually caused by your network. Here is how to fix:

On android, goto "Settings" » "Apps" or "Manage Apps" tab.
Click Sync Pro » "Force Stop".
Next, goto "Storage" » "Clear Data".
Again, got Sync Pro » "Mobile Data" » "Allow Background Data Usage".
Go back to "Settings" » "Connections" » "Mobile Network" » "Network Mode".
Now, put your network on 4G e.g. LTE/3G/2G (auto connect)
Relaunch Sync Pro on android.

Solve Sync Pro black/white screens issue on Android:

Follow the Sync Pro android app crash troubleshooting guide Here →

Contact Support

Some issues cannot be easily resolved through online tutorials or self help. So we made it easy to get in contact with the support team at HU YANRUI, developers of Sync Pro.

About this app

Sync Pro is the #1 unlimited sync app to let you browse firefox bookmarks on mobile. • Browse the bookmarks you saved on desktop firefox. • Check open tabs and continue your work on mobile. With Sync Pro, you can leave your computer at any time, pick your iPhone or iPad, fire SyncPro up , and continue browsing. What you need is on universal firefox official account. ( your firefox on desktop must higher than version 29. Unlike other sync app on App Store, we do not need you to install any plugin or any browser. Please use a "global service" sync account of firefox.