diff --git a/app/win/mozilla-102.patch b/app/win/mozilla-102.patch
deleted file mode 100644
index 45d39a93db..0000000000
--- a/app/win/mozilla-102.patch
+++ /dev/null
@@ -1,82 +0,0 @@
-diff --git a/browser/app/nsBrowserApp.cpp b/browser/app/nsBrowserApp.cpp
---- a/browser/app/nsBrowserApp.cpp
-+++ b/browser/app/nsBrowserApp.cpp
-@@ -149,19 +149,30 @@ static bool IsArg(const char* arg, const
- #endif
- 
-   return false;
- }
- 
- Bootstrap::UniquePtr gBootstrap;
- 
- static int do_main(int argc, char* argv[], char* envp[]) {
-+  // Allow profile downgrade for Zotero
-+  _putenv_s("MOZ_ALLOW_DOWNGRADE", "1");
-+  // Don't create dedicated profile (default-esr)
-+  _putenv_s("MOZ_LEGACY_PROFILES", "1");
-+
-   // Allow firefox.exe to launch XULRunner apps via -app <application.ini>
-   // Note that -app must be the *first* argument.
--  const char* appDataFile = getenv("XUL_APP_FILE");
-+  UniqueFreePtr<char> iniPath = BinaryPath::GetApplicationIni();
-+  if (!iniPath) {
-+	  Output("Couldn't find application.ini.\n");
-+	  return 255;
-+
-+  }
-+  char *appDataFile = iniPath.get();
-   if ((!appDataFile || !*appDataFile) && (argc > 1 && IsArg(argv[1], "app"))) {
-     if (argc == 2) {
-       Output("Incorrect number of arguments passed to -app");
-       return 255;
-     }
-     appDataFile = argv[2];
- 
-     char appEnv[MAXPATHLEN];
-diff --git a/xpcom/build/BinaryPath.h b/xpcom/build/BinaryPath.h
---- a/xpcom/build/BinaryPath.h
-+++ b/xpcom/build/BinaryPath.h
-@@ -267,16 +267,43 @@ class BinaryPath {
-     if (NS_FAILED(Get(path))) {
-       return nullptr;
-     }
-     UniqueFreePtr<char> result;
-     result.reset(strdup(path));
-     return result;
-   }
- 
-+  static UniqueFreePtr<char> GetApplicationIni() {
-+	char path[MAXPATHLEN];
-+	if (NS_FAILED(Get(path))) {
-+		return nullptr;
-+	}
-+
-+	char *c = path + strlen(path);
-+	while (c >= path && *c != '\\' && *c != '/') {
-+		*c = NULL;
-+		c--;
-+	}
-+
-+	if (c < path) {
-+		return nullptr;
-+	}
-+
-+	char iniPath[MAXPATHLEN];
-+	int n = snprintf(iniPath, MAXPATHLEN, "%s\\app\\application.ini", path);
-+	if (n < 0 || n >= MAXPATHLEN) {
-+		return nullptr;
-+	}
-+
-+	UniqueFreePtr<char> result;
-+	result.reset(strdup(iniPath));
-+	return result;
-+  }
-+
- #ifdef MOZILLA_INTERNAL_API
-   static nsresult GetFile(nsIFile** aResult) {
-     nsCOMPtr<nsIFile> lf;
- #  ifdef XP_WIN
-     wchar_t exePath[MAXPATHLEN];
-     nsresult rv = GetW(exePath);
- #  else
-     char exePath[MAXPATHLEN];