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: [Bild] 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 unterstützt keine UXP-Browser und deren Forks (z. B. Pale Moon)

Unterstützung

david (David Taylor) 27. Mai 2026 um 04:52 5

Wenn Sie die Entwicklertools des Browsers öffnen, sollten Sie ein Protokoll der fehlgeschlagenen JS/CSS-Feature-Erkennungen sehen.

Thema		Antworten	Aufrufe
Discourse is incompatible with Palemoon web browser (and older Firefox) Support	3	200	22. September 2025
Discourse and Pale Moon browser Support	10	1991	28. Mai 2020
Better copy for browser is "too old to work on this site" UX	12	1425	23. Juli 2022
Discourse not working on an old phone with an unsupported browser Support	15	2235	7. Februar 2020
Browser detection script (only!) malfunctioning on Pale Moon 32.x Support	2	510	3. August 2023

Discourse unterstützt keine UXP-Browser und deren Forks (z. B. Pale Moon)

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