It could be great, but... Rated 3 out of 5 stars

This could be an awesome addon, but, actually isn't working correctly. The anchors don't erase; well they erase, but reappear on page refresh. If you delete the bookmark the anchor persists. Why doesn't exists a menu item for delete selected anchor, bookmark, or both? An option for manage all anchors is needed too. The toolbar is annoying, and completely unnecessary in my opinion, wasting a precious screen space; please remove it and shift all the options for the right click menu. As I said, this could be an indispensable addon, but it needs design and usability improvements. Regards.

This review is for a previous version of the add-on (1.0.11110400.1-signed.1-signed). 

The reply to your comment

Thank you for using HYPER-ANCHOR.

>The anchors don't erase
The ‘erase’ button means to hide a highlight on a page.
It is does not mean to restore hyperanchor format URL to normal URL.
However, your indication is right and we also think to add a function to restore.

>The toolbar is annoying
You can customize the location of toolbar.
Please right-click on the Firefox toolbar and select ‘customize’, and you can move the HYPER-ANCHOR toolbar.

>this could be an indispensable addon, but it needs improvement.
I quite agree. Thank you for your opinion.