Is Bonjourr · Minimalist New Tab Page safe?
Bonjourr sends shortcut link origins, sync URLs, and custom background URLs to its own proxy service when direct requests fail.
On every new tab load, Bonjourr transmits the origin of each user-added shortcut link to services.bonjourr.fr to fetch favicons. When a user-configured sync URL or custom background URL cannot be fetched directly (e.g. due to CORS restrictions), the extension silently forwards those full URLs to Bonjourr's proxy server without notifying the user.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
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Findings
Private sync URL is sent to Bonjourr proxy after sync fallback
When Bonjourr's URL sync direct request fails, the extension sends the full sync URL to Bonjourr's proxy service.
This can expose a user-configured private sync URL to services.bonjourr.fr/proxy during setup and later syncs.
The user configures URL sync or triggers a sync-down operation.
If the direct sync fetch fails, the extension posts the full configured URL to Bonjourr's proxy.
| Field | Value | Why it matters | |
|---|---|---|---|
Your sync URL | https://example.com/private/bonjourr-sync.json (illustrative) | This is the user-configured URL used for Bonjourr sync; it may identify a private storage location or include sensitive path/query details. |
Dynamic analysis confirmed the fallback path: after a direct fetch failure, Bonjourr posted the configured sync URL to its proxy service.