Too damn aggressive, if it has a pop-over that I can close I would be very happy but to just cause it to move away from the site I'm viewing because an image gives a 404 status is damn right WRONG.

This thing i turned off until it is revisited that it checks for the base path to return a 404 and ignores if the original request returns a status of 200. How damn hard can it be?!

It keeps making it impossible to visit working sites by redirecting me to a page claiming they're dead. There really should be an option to disable the automatic redirection

This addon absolutely has some use in concept but it takes over pages loading slowly or differently - even fast loading consisten pages on some websites I visit.

I wish it worked, I wish there was a minimum configurable timer, and I wish I could set it to ONLY come up on ACTUAL 404's.

Instead, I'm just going to disable it for now and see if it ever gets better. Sadly it is far more in the way than helpful.

Often shows some giant wayback image for urls that are working. Actually it seems to think that there is an dns error while there is none. Not usable in this state.

Please only hijack the error pages (404 and dns error) and provide a link there to the wayback machine. That would be perfect. And thanks for wayback machine.

Constant false-positives, causing the giant Wayback Machine image to appear over an otherwise valid, working page, and causing me to loose all of my forward navigation history. Had to remove due to this extreme annoyance. Instead, it should simply show an icon in the address bar when an archived version of a page is available.