Firefox Sync troubleshooting and tips may have an answer to this issue.

Hi Mark, Thank you for your reply. But I read this article before, and my all Firefoxes are all up-to-date. Therefore I don't understand what goes wrong...

It's possible your sync data is corrupt on one of the three devices. Uninstalling / Reinstalling Firefox won't reset this data. But doing a Firefox Refresh will.

Try doing a refresh and then sync on each device which does not appear to be syncing properly.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information.

To Refresh Firefox:

1. Open the Troubleshooting Information page using one of these methods:
   • Click the menu button , click help and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
   • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
4. Click Finish and Firefox will reopen.

Did this fix the problem? Please report back to us!

Thank you.

Try to delete the Weave folder and the signedInUser.json file in the Firefox profile folder with Firefox closed and delete the prefs.js files to reset all prefs and maybe also delete the compatibility.ini file to reinitialize the profile.

You can use this button to go to the currently used Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox

Thank you, both !! I am away from home now, so when I get back later next week, I shall try both method and let you know the result : )

Thank you, both. Today I have tried both methods. Unfortunately, no sign of solution. My tablet windows 8.1 stubbornly shows only it own bookmarks. No way...

You can check the about:sync-log page via the location/address bar to see if there are error logs available.

You can upload the most recent log to this website if the log is too big to put in a reply.

• http://pastebin.mozilla.org

You can temporarily set the services.sync.log.appender.file.logOnSuccess pref to true on the about:config page to also get a log of a successful Sync. Do not forget to reset the services.sync.log.appender.file.logOnSuccess pref to false after you have finished testing Sync.

• http://kb.mozillazine.org/about:config

Thank you, cor-el, but I am not a PC savvy. I managed your previous advice, but this time I have no idea, what you ment...

I am getting to know the first part:

Index of file:///C:/Users/Kotomi/AppData/Roaming/Mozilla/Firefox/Profiles/2787ivm3.default-1430925443062/weave/

"Up to higher level directory"

addonsreconciler.json file > open

{"version":1,"addons":{"{972ce4c6-7e08-4474-a285-3208198ce6fd}":{"id":"{972ce4c6-7e08-4474-a285-3208198ce6fd}","guid":"QY2EwltxSXNS","enabled":true,"installed":true,"modified":1430926776849,"type":"theme","scope":4,"foreignInstall":false},"gmp-gmpopenh264":{"id":"gmp-gmpopenh264","enabled":true,"installed":true,"modified":1430926776851,"type":"plugin","scope":4,"foreignInstall":false},"{59f388ba-f292-fa00-7cac-08235bd2d446}":{"id":"{59f388ba-f292-fa00-7cac-08235bd2d446}","enabled":false,"installed":true,"modified":1430926776851,"type":"plugin","scope":8,"foreignInstall":true},"{46202618-7f2d-bec9-10b1-3472a5e6b050}":{"id":"{46202618-7f2d-bec9-10b1-3472a5e6b050}","enabled":false,"installed":true,"modified":1430926776852,"type":"plugin","scope":8,"foreignInstall":true},"{730668d5-a2f3-f44c-d895-50a736def8a1}":{"id":"{730668d5-a2f3-f44c-d895-50a736def8a1}","enabled":false,"installed":true,"modified":1430926776852,"type":"plugin","scope":8,"foreignInstall":true},"{10c68f07-63a6-4653-8f43-9fc763f22443}":{"id":"{10c68f07-63a6-4653-8f43-9fc763f22443}","enabled":false,"installed":true,"modified":1430926776852,"type":"plugin","scope":8,"foreignInstall":true},"{c4a864b7-e629-abfc-d6c1-08fc87dbd92f}":{"id":"{c4a864b7-e629-abfc-d6c1-08fc87dbd92f}","enabled":false,"installed":true,"modified":1430926776852,"type":"plugin","scope":8,"foreignInstall":true},"{250731da-4654-174e-2c42-3f260e9c2831}":{"id":"{250731da-4654-174e-2c42-3f260e9c2831}","enabled":false,"installed":true,"modified":1430926776853,"type":"plugin","scope":8,"foreignInstall":true},"{37a6259c-c0c1-dae2-99a7-866489dff0bd}":{"id":"{37a6259c-c0c1-dae2-99a7-866489dff0bd}","enabled":false,"installed":true,"modified":1430926776853,"type":"plugin","scope":8,"foreignInstall":true},"{67dc65a6-9f89-da33-1f46-b8f5c848fc02}":{"id":"{67dc65a6-9f89-da33-1f46-b8f5c848fc02}","enabled":false,"installed":true,"modified":1430926776853,"type":"plugin","scope":8,"foreignInstall":true},"{36e07069-9a49-6bcb-8be0-b3c94dfe0ad7}":{"id":"{36e07069-9a49-6bcb-8be0-b3c94dfe0ad7}","enabled":true,"installed":true,"modified":1430926776857,"type":"plugin","scope":8,"foreignInstall":true},"{2ee8eaa0-d15e-8fd9-2510-e78297cac20f}":{"id":"{2ee8eaa0-d15e-8fd9-2510-e78297cac20f}","enabled":true,"installed":true,"modified":1430926776858,"type":"plugin","scope":2,"foreignInstall":true}},"changes":1430926776849,1,"{972ce4c6-7e08-4474-a285-3208198ce6fd}"],[1430926776851,1,"gmp-gmpopenh264"],[1430926776851,1,"{59f388ba-f292-fa00-7cac-08235bd2d446}"],[1430926776852,1,"{46202618-7f2d-bec9-10b1-3472a5e6b050}"],[1430926776852,1,"{730668d5-a2f3-f44c-d895-50a736def8a1}"],[1430926776852,1,"{10c68f07-63a6-4653-8f43-9fc763f22443}"],[1430926776852,1,"{c4a864b7-e629-abfc-d6c1-08fc87dbd92f}"],[1430926776853,1,"{250731da-4654-174e-2c42-3f260e9c2831}"],[1430926776853,1,"{37a6259c-c0c1-dae2-99a7-866489dff0bd}"],[1430926776853,1,"{67dc65a6-9f89-da33-1f46-b8f5c848fc02}"],[1430926776857,1,"{36e07069-9a49-6bcb-8be0-b3c94dfe0ad7}"],[1430926776858,1,"{2ee8eaa0-d15e-8fd9-2510-e78297cac20f}"}

Is this what you ment???

Do you see any log files listed if you open the about:sync-log page via the location/address bar?

You can open about: pages via the location/address bar. about: is a protocol used to access special built-in pages.