I also using 56.0.2 (64 bit). Can you help me finding solution? I am on different date now to use FF, but I am already 2 days in the past. I tried to use your script and have: "// For FF < v57 >...? async function set_addons_as_signed() { Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm"); Components.utils.import("resource://gre/modules/AddonManager.jsm"); let XPIDatabase = this.XPIInternal.XPIDatabase;

      let addons = await XPIDatabase.getAddonList(a => true);
  
      for (let addon of addons) {
          // The add-on might have vanished, we'll catch that on the next startup
          if (!addon._sourceBundle.exists())
              continue;
  
          if( addon.signedState != AddonManager.SIGNEDSTATE_UNKNOWN )
              continue;
  
          addon.signedState = AddonManager.SIGNEDSTATE_NOT_REQUIRED;
          AddonManagerPrivate.callAddonListeners("onPropertyChanged",
                                                  addon.wrapper,
                                                  ["signedState"]);
  
          await XPIProvider.updateAddonDisabledState(addon);
  
      }
      XPIDatabase.saveChanges();
  }
  
  set_addons_as_signed();

Promise { <state>: "pending" }"

EDIT: have this one now: ado.config({ consent: true }); inpl.anc.js:40

Also what hotfix you refer too. I can not install [email protected] on old version :/

EDIT2: Installed this fix using debuging but it is not for a old FF and got some errors:

Reading manifest: Error processing hidden: An unexpected property was found in the WebExtension manifest. Reading manifest: Error processing experiment_apis: An unexpected property was found in the WebExtension manifest.