Is Lettres Gratuites safe?

Clean risk

Lettres Gratuites adds a Google search-page iframe and sends coarse letter-template query context to its server.

When you search Google, Lettres Gratuites checks the search query for letter-template phrases. If the page matches its rules, it inserts an iframe from its server and sends a match flag, a family identifier, and a timestamp rather than the full query text.

Lettres Gratuitesv1.0.3.3Firefox Add-ons
0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.0.3.3. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    *://*/

  • Store data in your browser

    storage

Where it sends data

Destinations our analysis observed Lettres Gratuites contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • lettres-gratuites.azurewebsites.net

    Lettres Gratuites sends data to lettres-gratuites.azurewebsites.net. 2 other extensions we have analysed send data here.

Updated 30 September 2026amo-2691560