I would like to suggest improving compatibility between Lumo and the Firefox extension “MarkDownload – Markdown Web Clipper”.

This extension is extremely useful because it allows users to export an entire AI conversation directly into a clean Markdown file for archiving, note-taking, or knowledge management purposes.

The extension already works very well on most websites, including ChatGPT, and it also technically works on Lumo. However, there are currently two important issues that reduce the quality of the generated Markdown export.

1. Incorrect source URL detection

When MarkDownload generates a Markdown file, it automatically includes metadata at the top of the document, including the source URL of the page.

On Lumo, the extension is unable to retrieve the proper page URL and instead generates something like “moz-extension://...” rather than the actual Lumo conversation URL.

Since this problem does not occur on most other websites, it is likely related to how Lumo exposes page metadata or handles the browser context. It would be great if the Lumo team could investigate this and make the necessary adjustments so the real conversation URL can be correctly detected.

2. No distinction between user and AI messages in the exported Markdown

This is the biggest usability issue.

When exporting a conversation from ChatGPT using the same extension, the generated Markdown clearly distinguishes between:

• the user messages
• the AI responses

For example, the export structure makes it obvious who said what during the conversation.

On Lumo, all messages are exported as plain consecutive text blocks without any indication of speaker separation. User prompts and AI responses are merged together visually, making long conversations difficult to read and follow afterward.

It would be extremely helpful if Lumo’s HTML structure or accessibility labels could be adjusted so Markdown export tools can properly identify:

• user messages
• assistant messages
• conversation titles

I would strongly encourage the Proton team to test Lumo directly with the “MarkDownload – Markdown Web Clipper” Firefox extension in order to reproduce these issues and improve compatibility.

Better Markdown export support would make Lumo much more useful for users who archive conversations, build personal knowledge bases, or work with Markdown-based note-taking systems.