diff --git a/modules/appnexusBidAdapter.js b/modules/appnexusBidAdapter.js
index f65a3409684..aaec207dc1e 100644
--- a/modules/appnexusBidAdapter.js
+++ b/modules/appnexusBidAdapter.js
@@ -11,7 +11,6 @@ const VIDEO_TARGETING = ['id', 'mimes', 'minduration', 'maxduration',
   'startdelay', 'skippable', 'playback_method', 'frameworks'];
 const USER_PARAMS = ['age', 'external_uid', 'segments', 'gender', 'dnt', 'language'];
 const APP_DEVICE_PARAMS = ['geo', 'device_id']; // appid is collected separately
-const DEBUG_PARAMS = ['enabled', 'dongle', 'member_id', 'debug_timeout'];
 const NATIVE_MAPPING = {
   body: 'description',
   cta: 'ctatext',
@@ -78,32 +77,6 @@ export const spec = {
       };
     }
 
-    let debugObj = {};
-    let debugObjParams = {};
-    const debugCookieName = 'apn_prebid_debug';
-    const debugCookie = getCookie(debugCookieName) || null;
-
-    if (debugCookie) {
-      try {
-        debugObj = JSON.parse(debugCookie);
-      } catch (e) {
-        utils.logError('AppNexus Debug Auction Cookie Error:\n\n' + e);
-      }
-    } else {
-      const debugBidRequest = find(bidRequests, hasDebug);
-      if (debugBidRequest && debugBidRequest.debug) {
-        debugObj = debugBidRequest.debug;
-      }
-    }
-
-    if (debugObj && debugObj.enabled) {
-      Object.keys(debugObj)
-        .filter(param => includes(DEBUG_PARAMS, param))
-        .forEach(param => {
-          debugObjParams[param] = debugObj[param];
-        });
-    }
-
     const memberIdBid = find(bidRequests, hasMemberId);
     const member = memberIdBid ? parseInt(memberIdBid.params.member, 10) : 0;
 
@@ -126,11 +99,6 @@ export const spec = {
       payload.app = appIdObj;
     }
 
-    if (debugObjParams.enabled) {
-      payload.debug = debugObjParams;
-      utils.logInfo('AppNexus Debug Auction Settings:\n\n' + JSON.stringify(debugObjParams, null, 4));
-    }
-
     if (bidderRequest && bidderRequest.gdprConsent) {
       // note - objects for impbus use underscore instead of camelCase
       payload.gdpr_consent = {
@@ -186,22 +154,6 @@ export const spec = {
         }
       });
     }
-
-    if (serverResponse.debug && serverResponse.debug.debug_info) {
-      let debugHeader = 'AppNexus Debug Auction for Prebid\n\n';
-      let debugText = debugHeader + serverResponse.debug.debug_info;
-      debugText = debugText
-        .replace(/(<td>|<th>)/gm, '\t') // Tables
-        .replace(/(<\/td>|<\/th>)/gm, '\n') // Tables
-        .replace(/^<br>/gm, '') // Remove leading <br>
-        .replace(/(<br>\n|<br>)/gm, '\n') // <br>
-        .replace(/<h1>(.*)<\/h1>/gm, '\n\n===== $1 =====\n\n') // Header H1
-        .replace(/<h[2-6]>(.*)<\/h[2-6]>/gm, '\n\n*** $1 ***\n\n') // Headers
-        .replace(/(<([^>]+)>)/igm, ''); // Remove any other tags
-      utils.logMessage('AppNexus Debug Auction Glossary: https://wiki.appnexus.com/x/qwmHAg');
-      utils.logMessage(debugText);
-    }
-
     return bids;
   },
 
@@ -477,15 +429,6 @@ function hasAppId(bid) {
   return !!bid.params.app
 }
 
-function hasDebug(bid) {
-  return !!bid.debug
-}
-
-function getCookie(name) {
-  let m = window.document.cookie.match('(^|;)\\s*' + name + '\\s*=\\s*([^;]*)\\s*(;|$)');
-  return m ? decodeURIComponent(m[2]) : null;
-}
-
 function getRtbBid(tag) {
   return tag && tag.ads && tag.ads.length && find(tag.ads, ad => ad.rtb);
 }
diff --git a/test/spec/modules/appnexusBidAdapter_spec.js b/test/spec/modules/appnexusBidAdapter_spec.js
index 0d7c670ee8a..9be87ac8628 100644
--- a/test/spec/modules/appnexusBidAdapter_spec.js
+++ b/test/spec/modules/appnexusBidAdapter_spec.js
@@ -396,33 +396,7 @@ describe('AppNexusAdapter', function () {
         rd_stk: bidderRequest.refererInfo.stack.map((url) => encodeURIComponent(url)).join(',')
       });
     });
-
-    it('adds debug auction settings to payload', () => {
-      let debugRequest = Object.assign({},
-        bidRequests[0],
-        {
-          params: {
-            placementId: '10433394'
-          },
-          debug: {
-            enabled: true,
-            dongle: 'QWERTY',
-            member_id: 958,
-            debug_timeout: 1000
-          }
-        }
-      );
-      const request = spec.buildRequests([debugRequest]);
-      const payload = JSON.parse(request.data);
-      expect(payload.debug).to.exist;
-      expect(payload.debug).to.deep.equal({
-        enabled: true,
-        dongle: 'QWERTY',
-        member_id: 958,
-        debug_timeout: 1000
-      });
-    });
-  });
+  })
 
   describe('interpretResponse', function () {
     let response = {