diff --git a/browser/extensions/doh-rollout/test/browser/browser.ini b/browser/extensions/doh-rollout/test/browser/browser.ini
index 2a5a627d5049..35af1889d00c 100644
--- a/browser/extensions/doh-rollout/test/browser/browser.ini
+++ b/browser/extensions/doh-rollout/test/browser/browser.ini
@@ -6,4 +6,5 @@ skip-if = debug # Bug 1548006 - reloading an addon upsets the leak checker.
 [browser_dirtyEnable.js]
 [browser_doorhangerUserReject.js]
 [browser_policyOverride.js]
+skip-if = (!debug && bits == 64) #Bug 1605297
 [browser_userInterference.js]