This extension is SO useful that I've put up with the awful automatic page-down detection for ages. But it's just gotten worse and worse. It doesn't even wait for the server to respond before redirecting to the page not available prompt!
I can see that this is the number one most complained about feature -- all you need to do is add a toggle so that we can disable the automatic redirects. That's it! If I could have this extension without the automatic redirects I would instantly give it five stars. I love archive.org and the Wayback Machine but this extension needs some love!
Once worked fine, but for the past few months, it has got "Fail with status: 498 No Reason Phrase" error with Retry button, which fails all the time on firefox (waterfox as well). So, now this extension is quite useless and needs to be updated.
I love the internet archive and the wayback machine, but I had to disable this extension because it constantly gives me false positives and won't let me see pages that are live. At the very least it needs a button to "Show Live Page" so I can override it. But as of now it's impossible to override without disabling the extension entirely :-(
It does what it is supposed to do, but also does it WHEN it is NOT supposed to. It is often triggered when my (overloaded) browser takes a bit longer to render a page, which is VERY annoying. What makes it worse, sometimes pages REALLY timeout if the server is down and this extension doesn't react to that. The additional minus point is the lack of any configuration options to, say increase the timeout or completely disable that "feature". Besides that, it would be nice to have it work from the context menu on links so the target pages could be instantly looked up on the Wayback Machine. All being said, I don't have much hope any of this will be fixed as I've seen many people have complained about the same problem and nothing has happened...
The “Page not available?” site opens even for some sites that work perfectly fine and prevents visiting these sites completely and this feature can't be disabled in favor of only manually visiting a site's archive. Also the context menu entry only works for the current page, even if you right-clicked a link. I would've expected to be taken to the archive of the site the link leads to, but that could just be me.
Very annoying, this add on keeps popup up and taking over webpages that are not down and normally would load fine. Sounds like others are having the same issue. I guess I'll have to remove this if the developers are not going to fix it.
It redirects many pages that are working just fine to the "Page not available screen", and there isn't a way to disable that part of the addon. I really like the ability to open a page in the wayback machine, but this addon gets in the way of my regular browsing too much.
Generally very helpful and almost never misses an error. Problem is, occasionally it'll activate for no apparent reason on a page that loads just fine, and will redirect to another page to do so. So now you have to hit back just to get to the page that was halfway through loading before the extension decided it actually wasn't. Weirdly, when it responds to a normal error it never redirects, instead opting for a popup you can close. Why it only agressively redirects you when it makes a mistake is a mystery, and a very annoying one.
It keeps taking over pages even if they do load. I end up having to click on the back button mltiple times because it keeps insisting that the page is missing when I can see it perfectly fine before it redirects it half a second later.
Great in principle, but... as plenty of other users have noted, it's way too hasty in execution. I'm continually having to reload perfectly live, current pages because it's jumped in prematurely. As others have also pointed out, it's ludicrous that the obstructive pop-up can't be cancelled – all it needs is a 'Cancel' button.
As a lot of people noted, too eager to display page that will take you to archives. Please, at least make setting that would disable that pop-up. I'm totally fine going into menu and asking for archive page from there if the page doesn't load. What I'm not fine with is when pop-up blocks otherwise working page.
So far it's alright, and it does what it says on the tin. However, it is probably too eager to prompt the user to check the 404 page. On many occasions where the page did load, its modal window pops in my face asking me to check out any archived versions.
Worse still, the popup is a modal window that blocks out the rest of the page and cannot actually be exited out of without reloading the whole page.
Personally, I think it would be fine if there was no pop-up at all. Simply have the user access the toolbar button.
it seems overzealous, maybe an error loading some part of the page triggers the extension to assume the entire page is unreachable? that's my guess- I'm not sure exactly what is triggering the false positives exactly. has worked a few times as intended/expected, too