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Firefox shows [object Object] on pages with code blocks

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Since a couple of months I see only [object Object] instead of code blocks on (almost) all web pages. For example on StackOverflow.

Any ideas what could cause this?

Since a couple of months I see only [object Object] instead of code blocks on (almost) all web pages. For example on StackOverflow. Any ideas what could cause this?
Capturas de pantalla anexas

Chosen solution

The problem was caused by the Merlin extension. Disabling the extension fixed the issue.

Ler a resposta no contexto 👍 5

All Replies (4)

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[object Object] sounds like the return value when you haven't called the right property or function on a JavaScript object.

I don't know what is causing on that post -- it looks normal to me: https://stackoverflow.com/a/3723649

Could you try temporarily disabling any extensions you've installed during 2023 and see whether that makes any difference?

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Chosen Solution

The problem was caused by the Merlin extension. Disabling the extension fixed the issue.

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Hello, I am facing the same problem Any other solutions?

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zayn.yacoob said

Hello, I am facing the same problem Any other solutions?

Any difference when you test in Firefox's Troubleshoot Mode? See: Diagnose Firefox issues using Troubleshoot Mode (do not "Refresh", just "Open").