3 files changed, 1 insertions, 67 deletions
diff --git a/browser/app/moz.build b/browser/app/moz.build
index 520ce4425..1004e280c 100644
--- a/browser/app/moz.build
+++ b/browser/app/moz.build
@@ -48,22 +48,6 @@ if CONFIG['OS_ARCH'] == 'WINNT':
 for cdm in CONFIG['MOZ_EME_MODULES']:
     DEFINES['MOZ_%s_EME' % cdm.upper()] = True
 
-if CONFIG['MOZ_SANDBOX'] and CONFIG['OS_ARCH'] == 'WINNT':
-    # For sandbox includes and the include dependencies those have
-    LOCAL_INCLUDES += [
-        '/security/sandbox/chromium',
-        '/security/sandbox/chromium-shim',
-    ]
-
-    USE_LIBS += [
-        'sandbox_s',
-    ]
-
-    DELAYLOAD_DLLS += [
-        'winmm.dll',
-        'user32.dll',
-    ]
-
 # Control the default heap size.
 # This is the heap returned by GetProcessHeap().
 # As we use the CRT heap, the default size is too large and wastes VM.
diff --git a/browser/app/nsBrowserApp.cpp b/browser/app/nsBrowserApp.cpp
index bae1d4bb7..193de46cf 100644
--- a/browser/app/nsBrowserApp.cpp
+++ b/browser/app/nsBrowserApp.cpp
@@ -26,9 +26,6 @@
 #ifdef XP_WIN
 #define XRE_WANT_ENVIRON
 #define strcasecmp _stricmp
-#ifdef MOZ_SANDBOX
-#include "mozilla/sandboxing/SandboxInitialization.h"
-#endif
 #endif
 #include "BinaryPath.h"
 
@@ -38,8 +35,7 @@
 #include "mozilla/Telemetry.h"
 #include "mozilla/WindowsDllBlocklist.h"
 
-#if !defined(MOZ_WIDGET_COCOA) && !defined(MOZ_WIDGET_ANDROID) \
-  && !(defined(XP_LINUX) && defined(MOZ_SANDBOX))
+#if !defined(MOZ_WIDGET_COCOA) && !defined(MOZ_WIDGET_ANDROID)
 #define MOZ_BROWSER_CAN_BE_CONTENTPROC
 #include "../../ipc/contentproc/plugin-container.cpp"
 #endif
@@ -202,11 +198,6 @@ static int do_main(int argc, char* argv[], char* envp[], nsIFile *xreDirectory)
     }
 
     XREShellData shellData;
-#if defined(XP_WIN) && defined(MOZ_SANDBOX)
-    shellData.sandboxBrokerServices =
-      sandboxing::GetInitializedBrokerServices();
-#endif
-
     return XRE_XPCShellMain(--argc, argv, envp, &shellData);
   }
 
@@ -257,12 +248,6 @@ static int do_main(int argc, char* argv[], char* envp[], nsIFile *xreDirectory)
     DllBlocklist_CheckStatus() ? NS_XRE_DLL_BLOCKLIST_ENABLED : 0;
 #endif
 
-#if defined(XP_WIN) && defined(MOZ_SANDBOX)
-  sandbox::BrokerServices* brokerServices =
-    sandboxing::GetInitializedBrokerServices();
-  appData.sandboxBrokerServices = brokerServices;
-#endif
-
 #ifdef LIBFUZZER
   if (getenv("LIBFUZZER"))
     XRE_LibFuzzerSetMain(argc, argv, libfuzzer_main);
@@ -364,15 +349,6 @@ int main(int argc, char* argv[], char* envp[])
   // We are launching as a content process, delegate to the appropriate
   // main
   if (argc > 1 && IsArg(argv[1], "contentproc")) {
-#if defined(XP_WIN) && defined(MOZ_SANDBOX)
-    // We need to initialize the sandbox TargetServices before InitXPCOMGlue
-    // because we might need the sandbox broker to give access to some files.
-    if (IsSandboxedProcess() && !sandboxing::GetInitializedTargetServices()) {
-      Output("Failed to initialize the sandbox target services.");
-      return 255;
-    }
-#endif
-
     nsresult rv = InitXPCOMGlue(argv[0], nullptr);
     if (NS_FAILED(rv)) {
       return 255;
diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
index e80f57fe4..c021da616 100644
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -921,32 +921,6 @@ pref("dom.ipc.shims.enabledWarnings", false);
 pref("browser.tabs.remote.autostart", false);
 pref("browser.tabs.remote.desktopbehavior", true);
 
-#if defined(XP_WIN) && defined(MOZ_SANDBOX)
-// When this pref is true the Windows process sandbox will set up dummy
-// interceptions and log to the browser console when calls fail in the sandboxed
-// process and also if they are subsequently allowed by the broker process.
-// This will require a restart.
-pref("security.sandbox.windows.log", false);
-
-// Controls whether and how the Windows NPAPI plugin process is sandboxed.
-// To get a different setting for a particular plugin replace "default", with
-// the plugin's nice file name, see: nsPluginTag::GetNiceFileName.
-// On windows these levels are:
-// 0 - no sandbox
-// 1 - sandbox with USER_NON_ADMIN access token level
-// 2 - a more strict sandbox, which might cause functionality issues. This now
-//     includes running at low integrity.
-// 3 - the strongest settings we seem to be able to use without breaking
-//     everything, but will probably cause some functionality restrictions
-pref("dom.ipc.plugins.sandbox-level.default", 0);
-#if defined(_AMD64_)
-// The lines in PluginModuleParent.cpp should be changed in line with this.
-pref("dom.ipc.plugins.sandbox-level.flash", 2);
-#else
-pref("dom.ipc.plugins.sandbox-level.flash", 0);
-#endif
-#endif
-
 // This pref governs whether we attempt to work around problems caused by
 // plugins using OS calls to manipulate the cursor while running out-of-
 // process.  These workarounds all involve intercepting (hooking) certain