Firefox 4 shows Unknown Sync Error

[Jailekhaa]

I am getting major issues with Firefox Sync to perform its thing and synchronies some data. While syncing I am getting an error message: "Sync meets an error while synchronizing: Unknown error. Sync will automatically redo this action." I could not understand this problem. I don’t think that this error is only for me. Those who have installed the Firefox 4 might be getting same error message. Actually the problem exists among Mac, ubuntu and Windows editions of Firefox 4. I hope that there will be a better way to sync the data manually,

[Ransom]

I have done the following thing and it worked for me very well and I think that you should try the same:

• First of all open the Firefox menu and go to the bookmarks > Organize bookmarks. Get there a backup of all bookmarks to continue on the secure side for those bookmarks.
• Now open the sync tab in Firefox preferences (edit -> preferences)

Uncheck the whole thing apart from passwords and close.

• Perform a sync via double clicking the sync inside the status bar (base of Firefox)
• Go backside toward the sync tab and re-enable individually what you require, doing a sync in amid.

[Anirvinya]

I have also got the similar kind of error which doesn’t leads to any solution. If this kind error occurred in a computer then it could be a tragedy for everyone because we can find any specific reason or solution for this issue. So after several tries I didn’t make it work proper and sync correctly. For that reason I have contacted the support team of Firefox. They advised me to delete the account. So I have deleted the account and completed a Re-install. After this everything is working fine so far presently.

[Appaji]

In my concern the Firefox 3.6.13 sync correctly however Firefox 4 does not while it used to sync through no trouble. I'm thinking at that moment the update headed for the Firefox Sync servers not at all supports Firefox beta 9 seeing as, via what I've examine, the update altered effects around a bit radically (APIs plus such) therefore I've shut off Sync in favor of beta 9. I thought that the full release of Firefox 4 will be completely without the bugs. But here I think that I am wrong now.

[Kaufman]

I have seen that there is a new add-on for Firefox add-on is available on the internet or the Firefox official site. This add-on is not necessary for the Firefox 4 because it is already included in that. But still you are saying that you are getting some unknown error while syncing the data. For that I urge you to try that add-on and see what you can get from that. This add-on will offer the access to your history, passwords and bookmarks. If you are using the beta then this add-on is not suitable.

[KennedII]

I think that you have downloaded the Beta version of Firefox 4. As far as I know that there are different versions of Beta available on the internet normally from 1 to 9. In order to get the trouble free version of Firefox you will need to download the latest version which just released now. It is actually a full version and normally we called as bug free version. At present there might be some limitations with the sync process but after recent update it may gonna solve.

[MickUpi]

I got this same error. Sync worked but the error was still annoying. I fixed it by going to manage account Sync and unchecking bookmarks, passwords, preferences, history, and tabs. I closed sync manager and then reopened it and put the check marks back in. It has worked ever since.

[francesquini]

As bizarre as it might seem, that did the trick for me as well...