In their Browser Addon: If you want to give a bad review, they redirect you to Google Docs. If you want to give a good review, they redirect you to this mozilla page. This way they filter out people who want to leave a honest, bad review...

Got captcha for every request after browser start. Then got captcha after 5-10 queries. But chrome extension work good.

doesn't work
tested on firefox developer v.73

screenshot
https://i.imgur.com/1vzRyKh.png

Once upon a time, in a different galaxy, this addon was of real use. Its original function – that of indicating similar sites – has already been buried in the ninth tab of an otherwise useless interface for ages. Now, for some mysterious reason I'm not inclined to elucidate, even that bit of functionality is gone, and only the first three tabs are operable. Which leaves me with no reason to keep this addon in my browser any more.

its not updating/refreshing anymore. I get the stats from February in the extension, but the stats from March on the website.

dont work

火狐浏览器添加不了

Something shady about this plugin, I dont know if it's bad developed or mining bitcoin, or something even worst, but it's using 40% of my CPU for nothing, see this video:

https://tsukasagenesis.tinytake.com/sf/Mjk4ODQzM184OTU5OTIx

Несколько дней назад перестал показывать статистику. Всегда пишет одно и то же:
"We’re sorry but...
We currently lack sufficient data to show complete estimations for this website....."
Разработчики, почините плагин!