What links and what website?

It's a streaming website.

I'm trying to watch rick and morty but i get that message when I use this link:

https://m.wcostream.net/rick-and-morty-season-6-episode-4-night-family

It's a temporary website issue (too many connections/users).

Website is limited to 1000 concurrent users.

It's not a Firefox problem.

Alright Thank you it's working now.

Clear Your Browser Cache In some cases, you might run into the “This site can't be reached” error due to problems with your cached files. To solve that issue, you'll need to clear your browser cache. Clearing cached images and files in Chrome. Click on Clear Data, and that's it.

Regards, Will