I'm currently seeing no 7TV emotes in twitch chat (haven't tried youtube). The problem presumably is that 7TV requests are being blocked by CORS policy for some reason. Here are the error messages I'm getting in the firefox console:
Error: Request has been terminated
Possible causes: the network is offline, Origin is not allowed by Access-Control-Allow-Origin, the page is being unloaded, etc.
crossDomainError moz-extension://86b85318-9b0f-4e10-b163-a11394fb7f1e/twitch.js:75
...
syncMessage error in https://passport.twitch.tv/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-a3be-862e0f06eea3/fp: A network error occurred.
syncMessage error in https://gql.twitch.tv/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-a3be-862e0f06eea3/fp: A network error occurred.
Error processing sheet
CSSStyleSheet resource://content-accessible/ImageDocument.css
DOMException: CSSStyleSheet.cssRules getter: Not allowed to access cross-origin stylesheet
syncMessage error in https://www.twitch.tv/steelmage/video/1695798709: A network error occurred.```
I'm using windows 10, and noticed the problem first in firefox. I figured it might be some other extension, but I still had the problem when disabling everything and also in incognito mode. I also had the same problem in chrome after installing the 7TV extension, with essentially the same error messages. I even tried Edge (normally unused) and saw the same thing. I'm not using any VPN or proxy.
It doesn't seem like this is a widespread issue, so I don't know of anything that others could do to reproduce the issue.
It seems like there was a similar issue recently caused by cloudflare issues? Was that resolved? Does anyone have any advice for me?