Install the Firefox extension
Requires Firefox 115 or newer on desktop or Android (Manifest V3). This installs the extension as a temporary add-on for testing.
- Download the Firefox extension (.zip)
- Unzip the downloaded file into a folder.
- In Firefox, go to
about:debugging#/runtime/this-firefox. - Click Load Temporary Add-on and select the unzipped
honest-reporting-firefox/manifest.json.
A temporary add-on stays installed only for the current session. For a permanent install, the add-on must be signed by Mozilla (AMO) and installed as an .xpi.