JSON parsing error while uploading new mod version with firefox

[hannibal002]

Please confirm the following.

• I checked the existing issues for duplicate problems
• I have tried resolving the issue using the support portal

What browsers are you seeing the problem on?

Firefox

Describe the bug

When I try to upload a new version of my mod on the Modrinth website, this error pops up in the bottom-right corner of my screen.

This happens a couple of seconds after I click on the “upload” button

I assume the mod gets uploaded on button press, and once the upload is finished, the error shows up.

This only happens with Firefox. When I switch to chrome, I can upload a new version of my mod without issues.

I first noticed this around 2 months ago, and this exact bug still happens today.

Steps to reproduce

1. log in on Modrinth website
2. go to the page of a mod you own
3. click on “versions”
4. click on “upload a version”
5. select a jar file on your computer.
6. in the create page, paste a changelog text, select a version name, number, forge 1.8.9 as the loader, add another mod as a dependency
7. click on “create”
8. wait a couple of seconds for the upload to finish
9. see the red error message

Expected behavior

Instead of the red error message, I expect the version to properly get released, as it works with chrome.

Additional context

Those are my extensions I use with Firefox.

None of those should impact this behavior, as I assume this is a server-side bug.

Note that I have ubo disabled on Modrinth, so there should not be any visuals (e.g., cookies) in the way that might cause this issue.

[Hallskii]

Hi there, I'm going to assume this is stale and no longer an issue for you. Did recently overhaul version uploading. Closing for now, but if you're still facing it please comment