It doe do a short report that includes the count of bookmarks. This addon may be able to do some repairs of the bookmarks datbase, but it will not attempt to remove duplicates.This mentions the 5000 limit (and that is possibly fairly arbitrary possibly number of changes and internet connection speed need to be considered when looking at corruption)įirefox Sync troubleshooting and tips_my-bookmarks-arent-syncing-to-firefox-for-android.It is east to turn of Sync of bookmarks see: How do I choose what information to sync on Firefox?.See Restore bookmarks from backup or move them to another computer.It is good practice to always make a backup before any import or restore.See Export Firefox bookmarks to an HTML file to back up or transfer bookmarks.It is important to keep our bookmarks organised. We can also configure the plug-in to delete duplicate bookmarks automatically, or we prefer to be notified for each case. The plug in can let us know when we're about to add a bookmark, and also indicate the URL we have already added. That is itself likely to cause extensive duplication. Bookmark manager for Mozilla Firefox It does more than that. It tags the new set of bookmarks on the the end of what exists. That is apparently the method you have tried.Note there are two separate methods of backing up bookmarks. These days Firefox is pretty good with the default automated internal bookmarks but as you have learned Sync can be a nightmare so if you backup manually at least you can choose to backup a set of bookmarks that sync has not wrecked.Īs you will have found out most of the sort of corruption Sync causes are difficult, very time consuming or impossible to correct, and quite possibly Sync will have affected auto backup sets before you realise what has happened.Īs I understand it this is a longstanding issue and would require a redesign of the Sync process and I do not think there are any plans to do that. Personally I suggest it is even more important to backup bookmarks manually if you opt for Sync of bookmarks.

Sync is not particularly good at handling large number of changes in Bookmarks either. No point in even trying Sync of bookmarks if you have over 5000 bookmarks.

Firefox bookmark duplicate detector