STR: 1. Toggle pref these prefs to true: privacy.trackingprotection.ui.enabled privacy.trackingprotection.enabled 2. Visit https://addons.mozilla.org/en-US/firefox/addon/noise-control/ (Make sure you see a tracking-protection shield at left end of URL bar) 3. Click "Add to Firefox", and watch the doorhanger that appears. ACTUAL RESULTS: - An add-on "puzzle-piece" icon appears in URL bar, to the left of tracking protection shield - A doorhanger appears, saying "downloading and verifying add-on", correctly-pointing to the puzzle-piece icon. - BUT: when the doorhanger changes to the [Cancel][Install] final prompt, it "jumps" to the right, to point to the *tracking protection* icon. EXPECTED RESULTS: Doorhanger should be attached to the puzzle-piece icon, when it shows the final [Cancel][Install] prompt.

Per policy at https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Inactive_Bugs. If this bug is not an enhancement request or a bug not present in a supported release of Firefox, then it may be reopened.