Two devices synced, but firefox will not show most tabs from other devices.

Question

I have had my laptop and my PC synced forever. Up until a week ago when I clicked "tabs from other devices" it would show me all of my tabs from the other computer, and if I closed one or opened a new one it would show up in the list almost instantly. Now all of a sudden when I click show tabs from other devices it will only show one or two of the tabs I have open on the other computer and ignore all the rest. No matter what I do I can only get it to show like google and facebook. Everything is still synced properly, bookmarks and all that jazz work fine. It's just the show tabs from other devices that isn't working, and that's the only feature I care about. If your suggestion is to make a new sync profile, don't bother responding, as that is not the problem or the solution.

Answer 1

Hi tdkevin,
This is strange you were not asked to try the new sync. As the old sync has the tab sync feature, but the new one has a new place for them. In order to move to the new sync you have to remove all the devices from the old sync and then it will allow you to set up the new one.
In Firefox for Android
In the new one in a new tab, tap on History, then on the bottom there are two icons: a clock and one with 4 grey squares. Tap that one and look at the recently synced tabs.
In Firefox for Desktop
if you have not set up the new sync the Tabs will sync every interval of time set by default in the about:config page. (search for sync interval I think). In the new one the about:accounts page will have a manage button that will take you to the preferences of sync. There you can check the Tabs tick.
I hope this clears up the differences between the old and new. The original question though was why some tabs were syncing and others not. I do not know, we can look at about:sync-logs if you have any errors in those log files. This may help lead to some more info.