- (Create profile: <https://developer.mozilla.org/Firefox/Multiple_profiles>, or via some other method)
- Navigate to _about:config_ and set the following preferences. (If a preference does not exist, create it be right-clicking in the white area and selecting New -> String)
- Open the Browser Console using Firefox's top menu at `Tools > Web Developer > Browser Console`. This will display Shield (loading/telemetry) log output from the add-on.
- To get an idea of how often telemetry is sent and calculated ping sizes, set `shieldStudy.logLevel` to `log`. This permits log-level shield-add-on log output in the browser console which includes high-level log messages regarding sent telemetry payloads.
- To get an idea of how often [OpenWPM](https://github.com/mozilla/openwpm-webext-instrumentation) instruments a JS/HTTP/COOKIE event, set `shieldStudy.logLevel` to `info`. This permits info-level shield-add-on log output in the browser console which includes high-level log messages regarding received OpenWPM packages.
- To inspect the unencrypted contents individual telemetry packets, set `shieldStudy.logLevel` to `all`. This permits debug-level shield-add-on log output in the browser console. Note that this will negatively affect the performance of Firefox.
- To see the actual (encrypted) payloads, go to `about:telemetry` -> Click `current ping` -> Select `Archived ping data` -> Ping Type `pioneer-study` -> Choose a payload -> Raw Payload
- Open the Browser Console using Firefox's top menu at `Tools > Web Developer > Browser Console`. This will display Shield (loading/telemetry) and log output from the add-on.