Rated 4 out of 5 stars

(This review has been rewritten)
I've used this extension for a while, it's easy to use and works as expected.
My only concern is the leftover advertisement code in this extension; options and files have not fully been removed.

Further more i owe the developer an apology.

This review used to be titled "something's fishy" because there were ads and ebay sites were disfunctional.
After fully updating/restarting firefox & this extension, the ads were gone.
After uninstalling ublock origin, ebay got back as normal.
Screengrab is not to blame.

This review is for a previous version of the add-on (0.99.12). 

what version of the addon are you using?
Sinse version 0.99.09c advertision on pages is deleted:
3-d party JavaScript-advertising has been deleted from add-on.