User Agent: Mozilla/5.0 (Android 4.4.4; Mobile; rv:51.0) Gecko/51.0 Firefox/51.0 Build ID: 20160908030434 Steps to reproduce: Delete and reorganize more than a 70.000 bookmarks. After sync te deleted and reordered bookmarks return and duplicate again. Please when delete bookmark and previously sync deletes. I trying to delete and solve sync problems but still complicated Actual results: Sync resuscitate deleted bookmarks. Sync recreate deleted bookmarks folders. Library window are very slow and have a dozens of problems. Expected results: When delete from one host delete from all hosts. Allow to manage large amounts of bookmarks. Sorry but I need help...

You should try disabling the Sync of all bookmarks, then organize your bookmarks, then re-enable bookmark syncing. Please let us know how that goes.

I tried. But was synced the bookmarks from other clients. The problem is the not syncing of deleted bookmarks before syncing the local bookmarks Sorry my poor English.

Please contact me if you need more details. I turned off sync for this moment but I need turn on again.

(In reply to Wellington Torrejais da Silva from comment #2) > I tried. But was synced the bookmarks from other clients. If you disable bookmarks on your device, then perform a sync, the bookmarks on the server are deleted. If you then re-enable bookmarks, then clients will re-send their bookmarks to the server. If you have other clients with bookmarks that you don't want on the server, you should disconnect that client from Sync before performing the above - then only the bookmarks from your connected bookmarks should end up on the server.

(In reply to Mark Hammond [:markh] from comment #4) > (In reply to Wellington Torrejais da Silva from comment #2) > > I tried. But was synced the bookmarks from other clients. > > If you disable bookmarks on your device, then perform a sync, the bookmarks > on the server are deleted. If you then re-enable bookmarks, then clients > will re-send their bookmarks to the server. If you have other clients with > bookmarks that you don't want on the server, you should disconnect that > client from Sync before performing the above - then only the bookmarks from > your connected bookmarks should end up on the server. It's not easily when have many devices. But i will try this solution. There is a page to check bookmarks in a server?

https://addons.mozilla.org/en-US/firefox/addon/about-sync/ can tell you what is on the server. Once you disable bookmarks and Sync, you should find that bookmarks vanishes from the list of collections. When you enable it and sync this device, you should see the bookmarks from this device appear (but also bookmarks from other devices as they again start syncing bookmarks)

(In reply to Mark Hammond [:markh] from comment #6) > https://addons.mozilla.org/en-US/firefox/addon/about-sync/ can tell you what > is on the server. Once you disable bookmarks and Sync, you should find that > bookmarks vanishes from the list of collections. When you enable it and sync > this device, you should see the bookmarks from this device appear (but also > bookmarks from other devices as they again start syncing bookmarks) I need your help. It's hard to delete bookmarks. I have many devices. I trying to delete some (15.000) Bookmarks one by one. (Before Enable sync) But i got many problems using "Library Manager": Script: chrome://browser/content/browser-places.js:1883 Script: chrome://browser/content/places/treeView.js:669 Script: chrome://browser/content/places/treeView.js:850 Script: chrome://browser/content/places/treeView.js:1123 Script: chrome://browser/content/places/editBookmarkOverlay.js:1128 I need many hours to try delete. A broken delete it is possible. It's possible solve this for me?

Broken delete. Error on delete. Hard to delete.

Another possibility you could consider is to "export" all your bookmarks to a file, manually edit that file in a text editor, then re-import them.

Storing tombstones permanently should fix this.