diff --git a/MozillaFirefox.changes b/MozillaFirefox.changes
index e49a422..2f6e45e 100644
--- a/MozillaFirefox.changes
+++ b/MozillaFirefox.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Dec 10 10:54:04 UTC 2020 - Martin Liška <mliska@suse.cz>
+
+- PGO is still broken as can be seen here:
+  https://bugzilla.mozilla.org/show_bug.cgi?id=1680306
+
 -------------------------------------------------------------------
 Tue Dec  8 09:50:23 UTC 2020 - Martin Liška <mliska@suse.cz>
 
diff --git a/MozillaFirefox.spec b/MozillaFirefox.spec
index 076babb..bcc42f6 100644
--- a/MozillaFirefox.spec
+++ b/MozillaFirefox.spec
@@ -37,7 +37,8 @@
 %define branding       1
 %define devpkg         1
 
-%define do_profiling   1
+# PGO builds do not work in TW currently (bmo#1680306)
+%define do_profiling   0
 
 # upstream default is clang (to use gcc for large parts set to 0)
 %define clang_build 0
@@ -215,7 +216,6 @@ Patch29:        revert-795c8762b16b.patch
 # Firefox/browser
 Patch101:       firefox-kde.patch
 Patch102:       firefox-branded-icons.patch
-Patch103:       fix-gcc-pgo.patch
 %endif
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 Requires(post):   coreutils shared-mime-info desktop-file-utils
@@ -358,7 +358,6 @@ cd $RPM_BUILD_DIR/%{srcname}-%{orig_version}
 # Firefox
 %patch101 -p1
 %patch102 -p1
-%patch103 -p1
 %endif
 
 %build
diff --git a/fix-gcc-pgo.patch b/fix-gcc-pgo.patch
deleted file mode 100644
index ee17913..0000000
--- a/fix-gcc-pgo.patch
+++ /dev/null
@@ -1,12 +0,0 @@
---- ./build/pgo/profileserver.py	2020-12-02 15:34:46.453053287 +0100
-+++ ./build/pgo/profileserver.py	2020-12-02 15:34:57.988970433 +0100
-@@ -203,7 +203,8 @@
-             sys.exit(1)
- 
-         llvm_profdata = env.get('LLVM_PROFDATA')
--        if llvm_profdata:
-+        cc = env.get('CC')
-+        if llvm_profdata and not 'gcc' in cc:
-             profraw_files = glob.glob('*.profraw')
-             if not profraw_files:
-                 print('Could not find profraw files in the current directory: %s' % os.getcwd())