Despite what the threads I read say, Discourse does not support UXP browsers and it’s forks like Pale Moon, Basilisk, etc… Any idea why or how this can be fixed? Does not get fixed when spoofing as Firefox in User Agent either. [Screenshot 2026-05-27 at 02.18.35] Pale Moon is not an old browser b…

hi there :wave: welcome :slight_smile: from What is Discourse? | Discourse - Civilized Discussion ) [image] this has also been discussed before here: Discourse is incompatible with Palemoon web browser (and older Firefox)

Is there anything Pale Moon can do to meet these guidelines? I’m happy to oblige to implement any missing JavaScript/CSS.

If it’s your own forum, this plugin might help: [image] Dumbcourse – Old-browser friendly UI at /dumb (D-pad + small screens) Plugin information_source Summary Dumbcourse adds a lightweight, old-browser friendly Discourse UI under /dumb, designed for D-pad…

If you open the browser developer console, you should see a log of the failed JS/CSS feature-detections.

Will take a look at it. Thanks. :+1:

Discourse does not support UXP browsers and it's forks (e.g, Pale Moon)

Support

wuggy (wuggy) May 27, 2026, 1:34pm 6

Will take a look at it. Thanks.

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Discourse is incompatible with Palemoon web browser (and older Firefox) Support	3	206	September 22, 2025
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Discourse does not support UXP browsers and it's forks (e.g, Pale Moon)

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