🟩 v140

FF136 release notes | for developers | security advisories
FF137 release notes | for developers | security advisories
FF138 release notes | for developers | security advisories
FF139 release notes | for developers | security advisories
FF140 release notes | for developers | security advisories

CHANGELOG

• all changes
• ToDo diffs: FF135-FF136 | FF136-FF137 | FF137-FF138 | FF138-FF139 | FF139-FF140
• v140 PR is at v140 #1945

• new in user.js v140
  • showSponsoredCheckboxes is cosmetic (the subitems are already unchecked) and has no effect until another pref is flipped after an experiment
  • featureGates added in advance
  • isolateContentScriptResources will be made active next PR (FF142+) when it is ready

user_pref("browser.newtabpage.activity-stream.showSponsoredCheckboxes", false); // FF140
user_pref("browser.urlbar.amp.featureGate", false); // FF141 adMarketplace
user_pref("browser.urlbar.wikipedia.featureGate", false); // FF141
   // user_pref("privacy.antitracking.isolateContentScriptResources", true); // FF139
   // user_pref("privacy.resistFingerprinting.skipEarlyBlankFirstPaint", true); // FF136
user_pref("security.csp.reporting.enabled", false); // FF140

• deprecated and removed from 8000: DON'T BOTHER: FINGERPRINTING

// user_pref("media.ondevicechange.enabled", "");

• moved to 9999: DEPRECATED / REMOVED

user_pref("browser.shopping.experience2023.enabled", false);
user_pref("browser.urlbar.pocket.featureGate", false);

NOTE: the STATs section excludes the new 8500 TELEMETRY section

• that section has 14 prefs moved into it
• these prefs have no bearing on web sites and the numbers are quite meaningless

 STATS v140: up to and including section 4500, minus the parrots
 =========
    total: 172
 inactive:  48
      n/a    3 (v2 migration sanitizing prefs)
           ---
   active: 121
  default:  15 (at least: ignores clearOnShutdown as enabling sanitizeOnShutdown is _the_ change)
      n/a:   2 (of the three prefs in 0202, only one will apply)
           ---
  flipped: 104 (at most)

ALL HAIL PANTS