--- a/tools/profiler/gecko/nsIProfiler.idl
+++ b/tools/profiler/gecko/nsIProfiler.idl
@@ -42,17 +42,16 @@ interface nsIProfiler : nsISupports
                      [optional] in double aDuration);
   void StopProfiler();
   boolean IsPaused();
   void Pause();
   void Resume();
   boolean IsSamplingPaused();
   void PauseSampling();
   void ResumeSampling();
-  void AddMarker(in string aMarker);
 
   /*
    * Resolves the returned promise after at least one full periodic sampling.
    * Rejects the promise if sampler is not running (yet, or anymore, or paused).
    * This is mainly useful in tests, to wait just long enough to guarantee that
    * one sample was taken in the main process.
    */
   [implicit_jscontext]

--- a/tools/profiler/gecko/nsProfiler.cpp
+++ b/tools/profiler/gecko/nsProfiler.cpp
@@ -183,22 +183,16 @@ nsProfiler::PauseSampling() {
 
 NS_IMETHODIMP
 nsProfiler::ResumeSampling() {
   profiler_resume_sampling();
   return NS_OK;
 }
 
 NS_IMETHODIMP
-nsProfiler::AddMarker(const char* aMarker) {
-  PROFILER_ADD_MARKER(aMarker, OTHER);
-  return NS_OK;
-}
-
-NS_IMETHODIMP
 nsProfiler::ClearAllPages() {
   profiler_clear_all_pages();
   return NS_OK;
 }
 
 NS_IMETHODIMP
 nsProfiler::WaitOnePeriodicSampling(JSContext* aCx, Promise** aPromise) {
   MOZ_ASSERT(NS_IsMainThread());