I just started working on a Next.js App. And now I am encountering this error whenever I call the page (hosted locally with npm run dev:

TypeError: a.default.detectStore(...) is undefined

u                 moz-extension://e51e5a88-36af-4f98-b63a-0d30c0512868/h1-check.js:1
1337              moz-extension://e51e5a88-36af-4f98-b63a-0d30c0512868/h1-check.js:1
n                 moz-extension://e51e5a88-36af-4f98-b63a-0d30c0512868/h1-check.js:1
<anonym>          moz-extension://e51e5a88-36af-4f98-b63a-0d30c0512868/h1-check.js:1
<anonym>          moz-extension://e51e5a88-36af-4f98-b63a-0d30c0512868/h1-check.js:1
inject            resource://gre/modules/ExtensionContent.sys.mjs:585
injectInto        resource://gre/modules/ExtensionContent.sys.mjs:458
AsyncFunctionNext self-hosted:799

I have created the next app from an example for next with docker. I’m not sure if the error occured from the beginning because I did not check the console until I had worked on it quite a bit.

I found the following post on Reddit but there is no reason why the solution there should apply to my case (in my opinion)

And there was a question on stackoverflow but it was closed as the person asking did not provide enough information.

I wondered if it had something to do with the tags I added to my page, just because it says a… is undefined. But the error occurs even on the default next.js index page that was given in the example.