diff --git a/dom/asmjscache/AsmJSCache.cpp b/dom/asmjscache/AsmJSCache.cpp
index 16faebc1d2..a2c37c6bfb 100644
--- a/dom/asmjscache/AsmJSCache.cpp
+++ b/dom/asmjscache/AsmJSCache.cpp
@@ -30,7 +30,6 @@
 #include "nsIAtom.h"
 #include "nsIFile.h"
 #include "nsIIPCBackgroundChildCreateCallback.h"
-#include "nsIPermissionManager.h"
 #include "nsIPrincipal.h"
 #include "nsIRunnable.h"
 #include "nsISimpleEnumerator.h"
@@ -443,11 +442,11 @@ public:
     mPrincipalInfo(aPrincipalInfo),
     mOpenMode(aOpenMode),
     mWriteParams(aWriteParams),
-    mPersistence(quota::PERSISTENCE_TYPE_INVALID),
     mState(eInitial),
     mResult(JS::AsmJSCache_InternalError),
     mIsApp(false),
     mEnforcingQuota(true),
+    mDeleteReceived(false),
     mActorDestroyed(false),
     mOpened(false)
   {
@@ -488,31 +487,6 @@ private:
     MOZ_ASSERT(!IsOnOwningThread());
   }
 
-  // This method is called on the owning thread when no cache entry was found
-  // to open. If we just tried a lookup in persistent storage then we might
-  // still get a hit in temporary storage (for an asm.js module that wasn't
-  // compiled at install-time).
-  void
-  CacheMiss()
-  {
-    AssertIsOnOwningThread();
-    MOZ_ASSERT(mState == eFailedToReadMetadata ||
-               mState == eWaitingToOpenCacheFileForRead);
-    MOZ_ASSERT(mOpenMode == eOpenForRead);
-
-    if (mPersistence == quota::PERSISTENCE_TYPE_TEMPORARY) {
-      Fail();
-      return;
-    }
-
-    // Try again with a clean slate. InitOnMainThread will see that mPersistence
-    // is initialized and switch to temporary storage.
-    MOZ_ASSERT(mPersistence == quota::PERSISTENCE_TYPE_PERSISTENT);
-    FinishOnOwningThread();
-    mState = eInitial;
-    NS_DispatchToMainThread(this);
-  }
-
   // This method is called on the owning thread when the JS engine is finished
   // reading/writing the cache entry.
   void
@@ -542,7 +516,7 @@ private:
 
     FinishOnOwningThread();
 
-    if (!mActorDestroyed) {
+    if (!mDeleteReceived && !mActorDestroyed) {
       Unused << Send__delete__(this, mResult);
     }
   }
@@ -561,9 +535,6 @@ private:
     MOZ_ALWAYS_SUCCEEDS(mOwningThread->Dispatch(this, NS_DISPATCH_NORMAL));
   }
 
-  void
-  InitPersistenceType();
-
   nsresult
   InitOnMainThread();
 
@@ -615,6 +586,10 @@ private:
     AssertIsOnOwningThread();
     MOZ_ASSERT(mState != eFinished);
 
+    MOZ_ASSERT(!mDeleteReceived);
+
+    mDeleteReceived = true;
+
     if (mOpened) {
       Close();
     } else {
@@ -666,23 +641,12 @@ private:
     return true;
   }
 
-  bool
-  RecvCacheMiss() override
-  {
-    AssertIsOnOwningThread();
-
-    CacheMiss();
-
-    return true;
-  }
-
   nsCOMPtr<nsIEventTarget> mOwningThread;
   const PrincipalInfo mPrincipalInfo;
   const OpenMode mOpenMode;
   const WriteParams mWriteParams;
 
   // State initialized during eInitial:
-  quota::PersistenceType mPersistence;
   nsCString mSuffix;
   nsCString mGroup;
   nsCString mOrigin;
@@ -702,7 +666,6 @@ private:
     eWaitingToOpenDirectory, // Waiting to open directory
     eWaitingToOpenMetadata, // Waiting to be called back from OpenDirectory
     eReadyToReadMetadata, // Waiting to read the metadata file on the IO thread
-    eFailedToReadMetadata, // Waiting to be dispatched to owning thread after fail
     eSendingMetadataForRead, // Waiting to send OnOpenMetadataForRead
     eWaitingToOpenCacheFileForRead, // Waiting to hear back from child
     eReadyToOpenCacheFileForRead, // Waiting to open cache file for read
@@ -716,56 +679,11 @@ private:
 
   bool mIsApp;
   bool mEnforcingQuota;
+  bool mDeleteReceived;
   bool mActorDestroyed;
   bool mOpened;
 };
 
-void
-ParentRunnable::InitPersistenceType()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mState == eInitial);
-
-  if (mOpenMode == eOpenForWrite) {
-    MOZ_ASSERT(mPersistence == quota::PERSISTENCE_TYPE_INVALID);
-
-    // If we are performing install-time caching of an app, we'd like to store
-    // the cache entry in persistent storage so the entry is never evicted,
-    // but we need to check that quota is not enforced for the app.
-    // That justifies us in skipping all quota checks when storing the cache
-    // entry and avoids all the issues around the persistent quota prompt.
-    // If quota is enforced for the app, then we can still cache in temporary
-    // for a likely good first-run experience.
-
-    MOZ_ASSERT_IF(mWriteParams.mInstalled, mIsApp);
-
-    if (mWriteParams.mInstalled &&
-        !QuotaManager::IsQuotaEnforced(quota::PERSISTENCE_TYPE_PERSISTENT,
-                                       mOrigin, mIsApp)) {
-      mPersistence = quota::PERSISTENCE_TYPE_PERSISTENT;
-    } else {
-      mPersistence = quota::PERSISTENCE_TYPE_TEMPORARY;
-    }
-
-    return;
-  }
-
-  // For the reasons described above, apps may have cache entries in both
-  // persistent and temporary storage. At lookup time we don't know how and
-  // where the given script was cached, so start the search in persistent
-  // storage and, if that fails, search in temporary storage. (Non-apps can
-  // only be stored in temporary storage.)
-
-  MOZ_ASSERT_IF(mPersistence != quota::PERSISTENCE_TYPE_INVALID,
-                mIsApp && mPersistence == quota::PERSISTENCE_TYPE_PERSISTENT);
-
-  if (mPersistence == quota::PERSISTENCE_TYPE_INVALID && mIsApp) {
-    mPersistence = quota::PERSISTENCE_TYPE_PERSISTENT;
-  } else {
-    mPersistence = quota::PERSISTENCE_TYPE_TEMPORARY;
-  }
-}
-
 nsresult
 ParentRunnable::InitOnMainThread()
 {
@@ -784,10 +702,8 @@ ParentRunnable::InitOnMainThread()
                                           &mOrigin, &mIsApp);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  InitPersistenceType();
-
   mEnforcingQuota =
-    QuotaManager::IsQuotaEnforced(mPersistence, mOrigin, mIsApp);
+    QuotaManager::IsQuotaEnforced(quota::PERSISTENCE_TYPE_TEMPORARY, mOrigin, mIsApp);
 
   return NS_OK;
 }
@@ -803,7 +719,7 @@ ParentRunnable::OpenDirectory()
   mState = eWaitingToOpenMetadata;
 
   // XXX The exclusive lock shouldn't be needed for read operations.
-  QuotaManager::Get()->OpenDirectory(mPersistence,
+  QuotaManager::Get()->OpenDirectory(quota::PERSISTENCE_TYPE_TEMPORARY,
                                      mGroup,
                                      mOrigin,
                                      mIsApp,
@@ -822,8 +738,12 @@ ParentRunnable::ReadMetadata()
   MOZ_ASSERT(qm, "We are on the QuotaManager's IO thread");
 
   nsresult rv =
-    qm->EnsureOriginIsInitialized(mPersistence, mSuffix, mGroup, mOrigin,
-                                  mIsApp, getter_AddRefs(mDirectory));
+    qm->EnsureOriginIsInitialized(quota::PERSISTENCE_TYPE_TEMPORARY,
+                                  mSuffix,
+                                  mGroup,
+                                  mOrigin,
+                                  mIsApp,
+                                  getter_AddRefs(mDirectory));
   if (NS_WARN_IF(NS_FAILED(rv))) {
     mResult = JS::AsmJSCache_StorageInitFailure;
     return rv;
@@ -898,7 +818,7 @@ ParentRunnable::OpenCacheFileForWrite()
     // Create the QuotaObject before all file IO and keep it alive until caching
     // completes to get maximum assertion coverage in QuotaManager against
     // concurrent removal, etc.
-    mQuotaObject = qm->GetQuotaObject(mPersistence, mGroup, mOrigin, file);
+    mQuotaObject = qm->GetQuotaObject(quota::PERSISTENCE_TYPE_TEMPORARY, mGroup, mOrigin, file);
     NS_ENSURE_STATE(mQuotaObject);
 
     if (!mQuotaObject->MaybeUpdateSize(mWriteParams.mSize,
@@ -952,7 +872,7 @@ ParentRunnable::OpenCacheFileForRead()
     // Even though it's not strictly necessary, create the QuotaObject before
     // all file IO and keep it alive until caching completes to get maximum
     // assertion coverage in QuotaManager against concurrent removal, etc.
-    mQuotaObject = qm->GetQuotaObject(mPersistence, mGroup, mOrigin, file);
+    mQuotaObject = qm->GetQuotaObject(quota::PERSISTENCE_TYPE_TEMPORARY, mGroup, mOrigin, file);
     NS_ENSURE_STATE(mQuotaObject);
   }
 
@@ -1058,8 +978,7 @@ ParentRunnable::Run()
 
       rv = ReadMetadata();
       if (NS_FAILED(rv)) {
-        mState = eFailedToReadMetadata;
-        MOZ_ALWAYS_SUCCEEDS(mOwningThread->Dispatch(this, NS_DISPATCH_NORMAL));
+        FailOnNonOwningThread();
         return NS_OK;
       }
 
@@ -1081,18 +1000,6 @@ ParentRunnable::Run()
       return NS_OK;
     }
 
-    case eFailedToReadMetadata: {
-      AssertIsOnOwningThread();
-
-      if (mOpenMode == eOpenForRead) {
-        CacheMiss();
-        return NS_OK;
-      }
-
-      Fail();
-      return NS_OK;
-    }
-
     case eSendingMetadataForRead: {
       AssertIsOnOwningThread();
       MOZ_ASSERT(mOpenMode == eOpenForRead);
@@ -1404,11 +1311,13 @@ private:
     MOZ_ASSERT(mState == eOpening);
 
     uint32_t moduleIndex;
-    if (FindHashMatch(aMetadata, mReadParams, &moduleIndex)) {
-      return SendSelectCacheFileToRead(moduleIndex);
+    if (!FindHashMatch(aMetadata, mReadParams, &moduleIndex)) {
+      Fail(JS::AsmJSCache_InternalError);
+      Send__delete__(this, JS::AsmJSCache_InternalError);
+      return true;
     }
 
-    return SendCacheMiss();
+    return SendSelectCacheFileToRead(moduleIndex);
   }
 
   bool
@@ -1760,7 +1669,6 @@ CloseEntryForRead(size_t aSize,
 
 JS::AsmJSCacheResult
 OpenEntryForWrite(nsIPrincipal* aPrincipal,
-                  bool aInstalled,
                   const char16_t* aBegin,
                   const char16_t* aEnd,
                   size_t aSize,
@@ -1777,7 +1685,6 @@ OpenEntryForWrite(nsIPrincipal* aPrincipal,
   static_assert(sNumFastHashChars < sMinCachedModuleLength, "HashString safe");
 
   WriteParams writeParams;
-  writeParams.mInstalled = aInstalled;
   writeParams.mSize = aSize;
   writeParams.mFastHash = HashString(aBegin, sNumFastHashChars);
   writeParams.mNumChars = aEnd - aBegin;
@@ -2043,7 +1950,6 @@ ParamTraits<WriteParams>::Write(Message* aMsg, const paramType& aParam)
   WriteParam(aMsg, aParam.mFastHash);
   WriteParam(aMsg, aParam.mNumChars);
   WriteParam(aMsg, aParam.mFullHash);
-  WriteParam(aMsg, aParam.mInstalled);
 }
 
 bool
@@ -2053,8 +1959,7 @@ ParamTraits<WriteParams>::Read(const Message* aMsg, PickleIterator* aIter,
   return ReadParam(aMsg, aIter, &aResult->mSize) &&
          ReadParam(aMsg, aIter, &aResult->mFastHash) &&
          ReadParam(aMsg, aIter, &aResult->mNumChars) &&
-         ReadParam(aMsg, aIter, &aResult->mFullHash) &&
-         ReadParam(aMsg, aIter, &aResult->mInstalled);
+         ReadParam(aMsg, aIter, &aResult->mFullHash);
 }
 
 void
@@ -2064,7 +1969,6 @@ ParamTraits<WriteParams>::Log(const paramType& aParam, std::wstring* aLog)
   LogParam(aParam.mFastHash, aLog);
   LogParam(aParam.mNumChars, aLog);
   LogParam(aParam.mFullHash, aLog);
-  LogParam(aParam.mInstalled, aLog);
 }
 
 } // namespace IPC
diff --git a/dom/asmjscache/AsmJSCache.h b/dom/asmjscache/AsmJSCache.h
index 45ef1f2b5f..eb2dbe2241 100644
--- a/dom/asmjscache/AsmJSCache.h
+++ b/dom/asmjscache/AsmJSCache.h
@@ -72,14 +72,12 @@ struct WriteParams
   int64_t mFastHash;
   int64_t mNumChars;
   int64_t mFullHash;
-  bool mInstalled;
 
   WriteParams()
-  : mSize(0),
-    mFastHash(0),
-    mNumChars(0),
-    mFullHash(0),
-    mInstalled(false)
+  : mSize(0)
+  , mFastHash(0)
+  , mNumChars(0)
+  , mFullHash(0)
   { }
 };
 
@@ -90,8 +88,8 @@ struct ReadParams
   const char16_t* mLimit;
 
   ReadParams()
-  : mBegin(nullptr),
-    mLimit(nullptr)
+  : mBegin(nullptr)
+  , mLimit(nullptr)
   { }
 };
 
@@ -120,7 +118,6 @@ CloseEntryForRead(size_t aSize,
                   intptr_t aHandle);
 JS::AsmJSCacheResult
 OpenEntryForWrite(nsIPrincipal* aPrincipal,
-                  bool aInstalled,
                   const char16_t* aBegin,
                   const char16_t* aEnd,
                   size_t aSize,
diff --git a/dom/asmjscache/PAsmJSCacheEntry.ipdl b/dom/asmjscache/PAsmJSCacheEntry.ipdl
index 4980650ccb..d16c9284ff 100644
--- a/dom/asmjscache/PAsmJSCacheEntry.ipdl
+++ b/dom/asmjscache/PAsmJSCacheEntry.ipdl
@@ -22,7 +22,6 @@ child:
   async OnOpenMetadataForRead(Metadata metadata);
 parent:
   async SelectCacheFileToRead(uint32_t moduleIndex);
-  async CacheMiss();
 
 child:
   // Once the cache file has been opened, the child is notified and sent an
diff --git a/dom/base/nsJSEnvironment.cpp b/dom/base/nsJSEnvironment.cpp
index 580d6bfba3..c7e17630ab 100644
--- a/dom/base/nsJSEnvironment.cpp
+++ b/dom/base/nsJSEnvironment.cpp
@@ -2265,7 +2265,6 @@ AsmJSCacheOpenEntryForRead(JS::Handle<JSObject*> aGlobal,
 
 static JS::AsmJSCacheResult
 AsmJSCacheOpenEntryForWrite(JS::Handle<JSObject*> aGlobal,
-                            bool aInstalled,
                             const char16_t* aBegin,
                             const char16_t* aEnd,
                             size_t aSize,
@@ -2274,8 +2273,7 @@ AsmJSCacheOpenEntryForWrite(JS::Handle<JSObject*> aGlobal,
 {
   nsIPrincipal* principal =
     nsJSPrincipals::get(JS_GetCompartmentPrincipals(js::GetObjectCompartment(aGlobal)));
-  return asmjscache::OpenEntryForWrite(principal, aInstalled, aBegin, aEnd,
-                                       aSize, aMemory, aHandle);
+  return asmjscache::OpenEntryForWrite(principal, aBegin, aEnd, aSize, aMemory, aHandle);
 }
 
 class AsyncTaskRunnable final : public Runnable
diff --git a/dom/workers/RuntimeService.cpp b/dom/workers/RuntimeService.cpp
index 0309a67375..62a582e734 100644
--- a/dom/workers/RuntimeService.cpp
+++ b/dom/workers/RuntimeService.cpp
@@ -677,7 +677,6 @@ AsmJSCacheOpenEntryForRead(JS::Handle<JSObject*> aGlobal,
 
 static JS::AsmJSCacheResult
 AsmJSCacheOpenEntryForWrite(JS::Handle<JSObject*> aGlobal,
-                            bool aInstalled,
                             const char16_t* aBegin,
                             const char16_t* aEnd,
                             size_t aSize,
@@ -689,8 +688,7 @@ AsmJSCacheOpenEntryForWrite(JS::Handle<JSObject*> aGlobal,
     return JS::AsmJSCache_InternalError;
   }
 
-  return asmjscache::OpenEntryForWrite(principal, aInstalled, aBegin, aEnd,
-                                       aSize, aMemory, aHandle);
+  return asmjscache::OpenEntryForWrite(principal, aBegin, aEnd, aSize, aMemory, aHandle);
 }
 
 class AsyncTaskWorkerHolder final : public WorkerHolder
diff --git a/js/src/jsapi.cpp b/js/src/jsapi.cpp
index 5aa38917f5..74d54aae64 100644
--- a/js/src/jsapi.cpp
+++ b/js/src/jsapi.cpp
@@ -3826,7 +3826,6 @@ JS::TransitiveCompileOptions::copyPODTransitiveOptions(const TransitiveCompileOp
     asmJSOption = rhs.asmJSOption;
     throwOnAsmJSValidationFailureOption = rhs.throwOnAsmJSValidationFailureOption;
     forceAsync = rhs.forceAsync;
-    installedFile = rhs.installedFile;
     sourceIsLazy = rhs.sourceIsLazy;
     introductionType = rhs.introductionType;
     introductionLineno = rhs.introductionLineno;
diff --git a/js/src/jsapi.h b/js/src/jsapi.h
index 68e852e23f..1f4f52c3bb 100644
--- a/js/src/jsapi.h
+++ b/js/src/jsapi.h
@@ -3821,7 +3821,6 @@ class JS_FRIEND_API(TransitiveCompileOptions)
         asmJSOption(AsmJSOption::Disabled),
         throwOnAsmJSValidationFailureOption(false),
         forceAsync(false),
-        installedFile(false),
         sourceIsLazy(false),
         introductionType(nullptr),
         introductionLineno(0),
@@ -3856,7 +3855,6 @@ class JS_FRIEND_API(TransitiveCompileOptions)
     AsmJSOption asmJSOption;
     bool throwOnAsmJSValidationFailureOption;
     bool forceAsync;
-    bool installedFile;  // 'true' iff pre-compiling js file in packaged app
     bool sourceIsLazy;
 
     // |introductionType| is a statically allocated C string:
@@ -6300,17 +6298,14 @@ enum AsmJSCacheResult
  * outparams. If the callback returns 'true', the JS engine guarantees a call
  * to CloseAsmJSCacheEntryForWriteOp passing the same base address, size and
  * handle.
- *
- * If 'installed' is true, then the cache entry is associated with a permanently
- * installed JS file (e.g., in a packaged webapp). This information allows the
- * embedding to store the cache entry in a installed location associated with
- * the principal of 'global' where it will not be evicted until the associated
- * installed JS file is removed.
  */
 typedef AsmJSCacheResult
-(* OpenAsmJSCacheEntryForWriteOp)(HandleObject global, bool installed,
-                                  const char16_t* begin, const char16_t* end,
-                                  size_t size, uint8_t** memory, intptr_t* handle);
+(* OpenAsmJSCacheEntryForWriteOp)(HandleObject global,
+                                  const char16_t* begin,
+                                  const char16_t* end,
+                                  size_t size,
+                                  uint8_t** memory,
+                                  intptr_t* handle);
 typedef void
 (* CloseAsmJSCacheEntryForWriteOp)(size_t size, uint8_t* memory, intptr_t handle);
 
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index 1f89e38482..f844913e4d 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -7215,9 +7215,12 @@ ShellCloseAsmJSCacheEntryForRead(size_t serializedSize, const uint8_t* memory, i
 }
 
 static JS::AsmJSCacheResult
-ShellOpenAsmJSCacheEntryForWrite(HandleObject global, bool installed,
-                                 const char16_t* begin, const char16_t* end,
-                                 size_t serializedSize, uint8_t** memoryOut, intptr_t* handleOut)
+ShellOpenAsmJSCacheEntryForWrite(HandleObject global,
+                                 const char16_t* begin,
+                                 const char16_t* end,
+                                 size_t serializedSize,
+                                 uint8_t** memoryOut,
+                                 intptr_t* handleOut)
 {
     if (!jsCachingEnabled || !jsCacheAsmJSPath)
         return JS::AsmJSCache_Disabled_ShellFlags;
diff --git a/js/src/wasm/AsmJS.cpp b/js/src/wasm/AsmJS.cpp
index 03c40ab268..69788a852b 100644
--- a/js/src/wasm/AsmJS.cpp
+++ b/js/src/wasm/AsmJS.cpp
@@ -1,7 +1,7 @@
 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  *
  * Copyright 2014 Mozilla Foundation
- * Copyright 2022, 2023 Moonchild Productions
+ * Copyright 2022-2024 Moonchild Productions
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -6700,11 +6700,10 @@ StoreAsmJSModuleInCache(AsmJSParser& parser, Module& module, ExclusiveContext* c
 
     const char16_t* begin = parser.tokenStream.rawCharPtrAt(ModuleChars::beginOffset(parser));
     const char16_t* end = parser.tokenStream.rawCharPtrAt(ModuleChars::endOffset(parser));
-    bool installed = parser.options().installedFile;
 
     ScopedCacheEntryOpenedForWrite entry(cx, serializedSize);
     JS::AsmJSCacheResult openResult =
-        open(cx->global(), installed, begin, end, serializedSize, &entry.memory, &entry.handle);
+        open(cx->global(), begin, end, serializedSize, &entry.memory, &entry.handle);
     if (openResult != JS::AsmJSCache_Success)
         return openResult;
 
diff --git a/js/xpconnect/loader/mozJSSubScriptLoader.cpp b/js/xpconnect/loader/mozJSSubScriptLoader.cpp
index a278cffa5a..8844a1d929 100644
--- a/js/xpconnect/loader/mozJSSubScriptLoader.cpp
+++ b/js/xpconnect/loader/mozJSSubScriptLoader.cpp
@@ -848,7 +848,6 @@ ScriptPrecompiler::OnStreamComplete(nsIIncrementalStreamLoader* aLoader,
 
     JS::CompileOptions options(cx, JSVERSION_DEFAULT);
     options.forceAsync = true;
-    options.installedFile = true;
 
     nsCOMPtr<nsIURI> uri;
     mChannel->GetURI(getter_AddRefs(uri));