english made in google translate :

Disarranging Favorites in Favorites Bar

It's been a while since the favorites of my favorites bar are disorganized for no apparent reason. And that's pretty unpleasant. What should I do to remedy this minor concern but for the least embarrassing for everyday use.

Are you using sync?

FredMcD said

Are you using sync?

Yes i'm using sync on 2 PC, but i tried to disable sync on 1 PC but the problem still happen

Sync is likely the main cause for this issue.

Did you try to run Firefox for a while with Sync disconnected on all devices?

You may need to repair the places.sqlite database.

You can check for problems with the places.sqlite database (bookmarks and history) in the Firefox profile folder.

• use "Verify Integrity" button on the "Help -> Troubleshooting Information" (about:support) page
  in case errors are reported close and restart Firefox and retry

See also:

• https://support.mozilla.org/en-US/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file
• https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional

If you use Sync then best is to reconnect one device at the time and wait for the initial Sync to finish before connecting another device once you have fixed the bookmarks.

cor-el said

You can check for problems with the places.sqlite database (bookmarks and history) in the Firefox profile folder.

• use "Verify Integrity" button on the "Help -> Troubleshooting Information" (about:support) page
  in case errors are reported close and restart Firefox and retry

here it is :

> Task: checkIntegrity
+ The places.sqlite database is sane
+ The favicons.sqlite database is sane
> Task: invalidateCaches
+ The caches have been invalidated
> Task: checkCoherence
+ The database is coherent
> Task: expire
+ Database cleaned up
> Task: originFrecencyStats
+ Recalculated origin frecency stats
> Task: vacuum
+ Initial database size is 5120KiB
+ The database has been vacuumed
+ Final database size is 5120KiB
> Task: stats
+ Places.sqlite size is 5120KiB
+ Favicons.sqlite size is 928KiB
+ pragma_user_version is 52
+ pragma_page_size is 32768
+ pragma_cache_size is -2048
+ pragma_journal_mode is wal
+ pragma_synchronous is 1
+ History can store a maximum of 40186 unique pages
+ Table moz_origins has 256 records
+ Table moz_places has 767 records
+ Table moz_historyvisits has 863 records
+ Table moz_inputhistory has 3 records
+ Table moz_bookmarks has 651 records
+ Table moz_bookmarks_deleted has 0 records
+ Table moz_keywords has 0 records
+ Table sqlite_sequence has 0 records
+ Table moz_anno_attributes has 2 records
+ Table moz_annos has 6 records
+ Table moz_items_annos has 0 records
+ Table moz_meta has 4 records
+ Table sqlite_stat1 has 17 records
+ Index sqlite_autoindex_moz_origins_1
+ Index sqlite_autoindex_moz_inputhistory_1
+ Index sqlite_autoindex_moz_bookmarks_deleted_1
+ Index sqlite_autoindex_moz_keywords_1
+ Index sqlite_autoindex_moz_anno_attributes_1
+ Index moz_places_url_hashindex
+ Index moz_places_hostindex
+ Index moz_places_visitcount
+ Index moz_places_frecencyindex
+ Index moz_places_lastvisitdateindex
+ Index moz_places_guid_uniqueindex
+ Index moz_places_originidindex
+ Index moz_historyvisits_placedateindex
+ Index moz_historyvisits_fromindex
+ Index moz_historyvisits_dateindex
+ Index moz_bookmarks_itemindex
+ Index moz_bookmarks_parentindex
+ Index moz_bookmarks_itemlastmodifiedindex
+ Index moz_bookmarks_dateaddedindex
+ Index moz_bookmarks_guid_uniqueindex
+ Index moz_keywords_placepostdata_uniqueindex
+ Index moz_annos_placeattributeindex
+ Index moz_items_annos_itemattributeindex
> Task: _refreshUI

OK, that shows that there is no problem with the places.sqlite database. Although there could still be a problem and Firefox tries to restore the bookmarks from a JSON backup.

Is there a possible places.sqlite.corrupt file in the profile folder?

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

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

I have only one profil into this.

Is there a possible places.sqlite.corrupt file in the profile folder?

nope