Hi, for problems with add-ons, you will usually have to see the add-on's Reviews or contact the developer - I assume this is the one - [https://addons.mozilla.org/en-US/firefox/addon/add-bookmark-here-2/?src=search Add Bookmark Here ².] However, before doing that, it's a good idea to make sure that none of your other add-ons are interfering (which can frequently happen), by disabling them and seeing if that fixes the issue. If it does, you will need to re-enable them one by one until you find the culprit - Add-ons Manager (Cmd+Shift+A > Extensions). ''If your question is resolved by this or another answer, please take a minute to let us know. Thank you.''