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set up sync. Works great. Restart Firefox, sybc no longer setup and working.


Very odd problem with sync.

Set up sync account on computer #1. Get sync codes from computer #2 and Laptop #3. Use "pair device" in computer #1 and everything is linked great. I can sit there and add/remove bookmarks and watch them sync on each of the three devices. In all three of the devices I can of course "force" the link by selecting "sync now" under the "tools" menu.

Here is where it goes sideways. If I close and restart Firefox on any of the three devices, the "sync" is gone on that device and I no longer have the "sync now" option. It is replaced with "set-up sync". This even happens on the primary computer #1. Only way I can get sync back is to go to the website to manage the sync account, delete it, make a new one, and resync all devices. But or course it only lasts as long as I don't restate Firefox.

Any help is appreciated. F.D.

Modified by bishop333

Additional System Details


  • User Agent: Mozilla/5.0 (Windows NT 6.1; rv:19.0) Gecko/20100101 Firefox/19.0

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10753 solutions 96760 answers

You can check for problems with preferences and try to rename or delete the prefs.js file and possible numbered prefs-##.js files and a possible user.js file to reset all prefs to the default values.

Question owner


Thank you. So did the "reset preferences" option and it worked on the primary device. But I also had to do it to all the other devices or problem would come back. Now it is working. Strange bug for sure. Please report if you would as I am betting it will come back again.