I have been trying to delete over 3000 duplicate entries. I have spent over an hour an still had over 3000 left. Installed this app, clicked on three filters and gone! I now have a few over 300 entries in various folders. And all in less than 5 minutes including download and setup. One of the great filters allowed me to select the first item in each group. The duplicate data was presented in groups with similar/same associations. By selecting the fist in each group an delete all the other entries in that group some had 40+ entries of the same site. I did make a backup of my favorites before I hit the delete key.

Easy to use for removing duplicate bookmarks, empty folders. Easy selection of items for mass deletion.

This Addon is great. Just the UI isn't that great for first time user, I hope this ability is built in in Firefox so we don't need to install 3rd party plugin, but this Plugin is great!

Thank you for creating such plugin :)

Smart, quick, batch identifying and removal, that's all I need. Thank you very much for creating this add-on!

Crazy unbelievable extension. Saved me hours of cleaning up. I have over 650 dupes and all it took 50seconds and less. All clean good bookmarks. Wow, Martin, Thanx a million for this extension.

Worked exactly as described. Saved me from a headache of mistakenly imported dupes! Thank you..!!!

After re-importing my bookmarks, everything was duplicated. This add-on saved me from the headaches. Works flawless. :)

Works great, very clean design. Topp I was looking for such an Extension since years. Thank you so much.

Thing works like a beast. There's several extensions out there that all say they can do this. I'm not sure if it's Firefox's ability to run well or if the developer just knows what's up. This is by far, hands down, your fastest way to delete duped bookmarks. Great work.

Tried different tools..... This tool is best one! Recommended.

Thank you great addon, removed about 3000 duplicates in minutes adn so easy to use..

Did the job. Easy to use.