NextJS not working with Firefox?

[embedvr]

Hello. About 3 days ago I was code with nextjs and load it up in Firefox. For some reason though, a day later it just refused to load the site. I only noticed that today Chromium is able to load my project up fine. Is anyone able to help or know what might be wrong?

I have

• Cleared cookies
• Cleared data
• Updated Firefox
• Restarted my pc, updated my pc, restarted npm, updated all my packages
• Deleted .next folder

I have no clue what would be happening. This didn't happen before.


1st image is Firefox. Latest version as of writing
2nd image is Chromium. Latest version as of writing.
I am using Arch Linux.

[thibautsabot]

Hello.

Can you provide a reproduction repository so we could investigate it further?

Thank you.

[TheLexoPlexx]

Same Problem over here. Firefox Version 99.0.1. Additionally, I tried deleting all the cache for "localhost". I've got a reproduction repo ready because it contains barely any content other than the defaults. DM me if you are interested because I've got a one commit without the error and the next one with it.

Running on WSL2 Ubuntu 20.04.

[thibautsabot]

Hello! Please share the link to the repository so anyone could investigate 🙂.

[embedvr]

Hey! I believe I fixed this via deleting an extension. I had some sort of specific ad block for YouTube which for some reason blocked the NextJS site.

[gamingexpert13]

embedvr, good find. I have the same issue and seems to be caused by my "Anti-Adblock Blocker" extension.
https://addons.mozilla.org/en-US/firefox/addon/anti-adblock-blocker/
https://gitlab.com/aforementioned.dude/anti-adblock-blocker

[palttamas]

Same here, using Firefox 99.0 (64-bit) on Ubuntu 20

I kind of suspect it has something to do with next/image, when there are dozens of them on the page.

Can't provide public repo, sorry. I'll keep investigating.

[TheLexoPlexx]

I would disagree, I did not use a single one of those.

[chriscn]

Providing my issue, not sure what is causing it specifically. The cookies().getAll() method on Firefox doesn't return any cookies. Even when they exist in the Local Storage - the issue doesn't appear to happen on Chromium.

[embedvr]

My issue seemed related to extensions, however the problems sounds different as for my issue, NextJS just wasn't loading at all.

[palttamas]

Same here, using Firefox 99.0 (64-bit) on Ubuntu 20

I kind of suspect it has something to do with next/image, when there are dozens of them on the page.

Can't provide public repo, sorry. I'll keep investigating.

Note to myself: check for infinite loops next time you are using onLoadingComplete (╯°□°)╯︵ ┻━┻

[LMSSonos]

I have the same issue, I think it's firefox (v126b9 developer edition) related probably to the multicontainers extension, but not 100% sure

• If it stucks, I just have to restart firefox and it works again
• Alternative I can open a private window and it works again

Issue only occurs when running on localhost, not yet sure how to reproduce it.