Rated 1 out of 5 stars
This addon asks you to try something called "SmartLinks" occasionally. The box pops up after installation and at other unexpected times. It's reminiscent of the old "save.exe" spyware / adware. The "Decline" button on the "ad" is gray in color to give the impression that the option to decline is disabled.
This kind of thing should be against Mozilla's Developer Agreement.