diff --git a/firefox.spec b/firefox.spec
index 13b52e2..4482ab2 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -163,7 +163,7 @@ ExcludeArch: aarch64
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        100.0
-Release:        4%{?pre_tag}%{?dist}
+Release:        5%{?pre_tag}%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://archive.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.xz
@@ -218,6 +218,7 @@ Patch61:        firefox-glibc-dynstack.patch
 Patch62:        build-python.patch
 Patch71:        0001-GLIBCXX-fix-for-GCC-12.patch
 Patch72:        D142373.diff
+Patch73:        mozilla-1767916-multimonitor-crash.patch
 
 # Test patches
 # Generate without context by
@@ -243,6 +244,7 @@ Patch408:        mozilla-1663844.patch
 Patch415:        mozilla-1670333.patch
 Patch416:        D145094.diff
 Patch417:        D145541.diff
+Patch418:        mozilla-1767946-profilemanagersize.patch
 
 # PGO/LTO patches
 Patch600:        pgo.patch
@@ -461,6 +463,7 @@ This package contains results of tests executed during build.
 %patch54 -p1 -b .1669639
 %patch71 -p1 -b .0001-GLIBCXX-fix-for-GCC-12
 %patch72 -p1 -b .D142373
+%patch73 -p1 -b .mozilla-1767916-multimonitor-crash
 
 # Test patches
 #%patch100 -p1 -b .firefox-tests-xpcshell
@@ -484,6 +487,7 @@ This package contains results of tests executed during build.
 %patch415 -p1 -b .1670333
 %patch416 -p1 -b .D145094
 %patch417 -p1 -b .D145541
+%patch418 -p1 -b .mozilla-1767946-profilemanagersize
 
 # PGO patches
 %if %{build_with_pgo}
@@ -1050,6 +1054,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Tue May 10 2022 Jan Horak <jhorak@redhat.com> - 100.0-5
+- Fix crashes on f36 multimonitor setup and too big profile manager
+
 * Mon May 9 2022 Martin Stransky <stransky@redhat.com>- 100.0-4
 - Added fix for mozbz#1767916.
 
diff --git a/mozilla-1767916-multimonitor-crash.patch b/mozilla-1767916-multimonitor-crash.patch
new file mode 100644
index 0000000..7ca3a2e
--- /dev/null
+++ b/mozilla-1767916-multimonitor-crash.patch
@@ -0,0 +1,21 @@
+diff --git a/widget/gtk/MozContainerWayland.cpp b/widget/gtk/MozContainerWayland.cpp
+--- a/widget/gtk/MozContainerWayland.cpp
++++ b/widget/gtk/MozContainerWayland.cpp
+@@ -527,10 +527,16 @@
+       return;
+     }
+ 
+     LOGWAYLAND("%s [%p] scale %d\n", __FUNCTION__,
+                (void*)moz_container_get_nsWindow(container), scale);
++    // There is a chance that the attached wl_buffer has not yet been doubled
++    // on the main thread when scale factor changed to 2. This leads to
++    // crash with the following message:
++    // Buffer size (AxB) must be an integer multiple of the buffer_scale (2)
++    // Removing the possibly wrong wl_buffer to prevent that crash:
++    wl_surface_attach(wl_container->surface, nullptr, 0, 0);
+     wl_surface_set_buffer_scale(wl_container->surface, scale);
+     wl_container->buffer_scale = scale;
+   }
+ }
+ 
+
diff --git a/mozilla-1767946-profilemanagersize.patch b/mozilla-1767946-profilemanagersize.patch
new file mode 100644
index 0000000..4469934
--- /dev/null
+++ b/mozilla-1767946-profilemanagersize.patch
@@ -0,0 +1,30 @@
+diff --git a/widget/gtk/nsWindow.cpp b/widget/gtk/nsWindow.cpp
+--- a/widget/gtk/nsWindow.cpp
++++ b/widget/gtk/nsWindow.cpp
+@@ -3787,11 +3787,12 @@
+     mPendingConfigures--;
+   }
+ 
+   // Don't fire configure event for scale changes, we handle that
+   // OnScaleChanged event. Skip that for toplevel windows only.
+-  if (mWindowType == eWindowType_toplevel) {
++  if (mWindowType == eWindowType_toplevel ||
++      mWindowType == eWindowType_dialog) {
+     MOZ_DIAGNOSTIC_ASSERT(mGdkWindow,
+                           "Getting configure for invisible window?");
+     if (mWindowScaleFactor != gdk_window_get_scale_factor(mGdkWindow)) {
+       LOG("  scale factor changed to %d,return early",
+           gdk_window_get_scale_factor(mGdkWindow));
+@@ -4864,10 +4865,11 @@
+   // Force scale factor recalculation
+   if (!mGdkWindow) {
+     mWindowScaleFactorChanged = true;
+     return;
+   }
++  LOG("OnScaleChanged -> %d\n", gdk_window_get_scale_factor(mGdkWindow));
+ 
+   // Gtk supply us sometimes with doubled events so stay calm in such case.
+   if (gdk_window_get_scale_factor(mGdkWindow) == mWindowScaleFactor) {
+     return;
+   }
+