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There´s a lot of false positives. When the list is finished, you must start checking one by one to see if its really a deleted link or not. It needs lot of working.

Would be even better if there was options to select multiple duplicate webpages. To help save you time manually deleting them all.

Easy to use and intuitive. Not found any errors. (October, 2018)

It was only supposed to clean out the broken links (as that was all I selected) and it ended up removing ALL my Facebook bookmark links. So I am removing this. I seriously wish I had been as smart as reviewer of this addon Scott750 who did not let it delete but checked the bookmarks it wanted to delete first only to realize that the ones that were supposedly dead bookmarks actually were not. I wish I would have read Scott750's review before u sing this addon. I sincerely regret using this extension.

WTF is this useless crap? Only identifies - you must still go through and individually delete dupes. You can merely do that in FF's poorly designed bookmark manager and waste as much time without some bum tracking you online.

If it can show why the bookmarks are considered as error, e.g. 404, 500, or network error, it would be better. And the other thing is that the paths of duplicated bookmarks are not complete, I couldn't decide which to delete since they usually in two different but same name folders.

Developer did a good job, this extension works well. I got rid of over 300 dead links and even more duplicates.

Helpful in spotting & managing duplicates. Helpful to further screen errors & warnings in more detail.

Very Helpful. The ability to delete the redirects is great. Additionally, the ability to review each bookmark and edit/delete/correct each and even double click to open in a new tab (to copy the home page addy and edit the bookmark) is a great tool. The one I had in prior FF versions basically only offered bulk delete options. Vielen Dank!

用起来很不错，很多功能考虑到了

Very useful! Sure there are some false-positive 404's. But overall this add-on saves me a lot of time finding broken or duplicate links. One suggestion, the add-on should try to cut the "end" of a link and check if rest still exists. e.g. www.site.com/page/index.php is not found, but www.site.com/page/ still exists.

I had this thing go through my bookmarks. It scanned 1225 bookmarks and 90 had errors and 600 warnings. I was going to delete the errors, but I thought I would check first. The first 10 bookmarks with errors that I checked went right to the web page it was bookmarked for. Nothing wrong with the bookmarks that were marked for error. This thing is worthless and has people deleting perfectly good bookmarks. Uninstalling!