diff --git a/firefox-kde-webrender.patch b/firefox-kde-webrender.patch
new file mode 100644
index 0000000..b827a57
--- /dev/null
+++ b/firefox-kde-webrender.patch
@@ -0,0 +1,33 @@
+diff -up firefox-85.0/widget/GfxInfoX11.cpp.firefox-kde-webrender firefox-85.0/widget/GfxInfoX11.cpp
+--- firefox-85.0/widget/GfxInfoX11.cpp.firefox-kde-webrender	2021-02-01 16:15:09.807773987 +0100
++++ firefox-85.0/widget/GfxInfoX11.cpp	2021-02-01 16:20:26.115125315 +0100
+@@ -713,6 +713,14 @@ const nsTArray<GfxDriverInfo>& GfxInfo::
+         DRIVER_GREATER_THAN_OR_EQUAL, V(18, 0, 0, 0),
+         "FEATURE_ROLLOUT_INTEL_GNOME_WAYLAND_MESA", "Mesa 18.0.0.0");
+ 
++    APPEND_TO_DRIVER_BLOCKLIST_EXT(
++        OperatingSystem::Linux, ScreenSizeStatus::All, BatteryStatus::All,
++        DesktopEnvironment::KDE, WindowProtocol::Wayland,
++        DriverVendor::MesaAll, DeviceFamily::IntelRolloutWebRender,
++        nsIGfxInfo::FEATURE_WEBRENDER, nsIGfxInfo::FEATURE_ALLOW_ALWAYS,
++        DRIVER_GREATER_THAN_OR_EQUAL, V(18, 0, 0, 0),
++        "FEATURE_ROLLOUT_INTEL_GNOME_WAYLAND_MESA", "Mesa 18.0.0.0");
++
+     // ATI Mesa baseline, chosen arbitrarily.
+     APPEND_TO_DRIVER_BLOCKLIST_EXT(
+         OperatingSystem::Linux, ScreenSizeStatus::All, BatteryStatus::All,
+@@ -727,6 +735,14 @@ const nsTArray<GfxDriverInfo>& GfxInfo::
+         DriverVendor::MesaAll, DeviceFamily::AtiRolloutWebRender,
+         nsIGfxInfo::FEATURE_WEBRENDER, nsIGfxInfo::FEATURE_ALLOW_ALWAYS,
+         DRIVER_GREATER_THAN_OR_EQUAL, V(18, 0, 0, 0),
++        "FEATURE_ROLLOUT_ATI_GNOME_WAYLAND_MESA", "Mesa 18.0.0.0");
++
++    APPEND_TO_DRIVER_BLOCKLIST_EXT(
++        OperatingSystem::Linux, ScreenSizeStatus::All, BatteryStatus::All,
++        DesktopEnvironment::KDE, WindowProtocol::Wayland,
++        DriverVendor::MesaAll, DeviceFamily::AtiRolloutWebRender,
++        nsIGfxInfo::FEATURE_WEBRENDER, nsIGfxInfo::FEATURE_ALLOW_ALWAYS,
++        DRIVER_GREATER_THAN_OR_EQUAL, V(18, 0, 0, 0),
+         "FEATURE_ROLLOUT_ATI_GNOME_WAYLAND_MESA", "Mesa 18.0.0.0");
+ 
+ #ifdef EARLY_BETA_OR_EARLIER
diff --git a/firefox.spec b/firefox.spec
index 3ef52af..b1b1d0b 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -240,6 +240,7 @@ Patch226:        rhbz-1354671.patch
 Patch227:        firefox-locale-debug.patch
 Patch228:        disable-openh264-download.patch
 Patch229:        firefox-nss-addon-hack.patch
+Patch230:        firefox-kde-webrender.patch
 
 # Upstream patches
 Patch402:        mozilla-1196777.patch
@@ -453,6 +454,7 @@ This package contains results of tests executed during build.
 %patch227 -p1 -b .locale-debug
 %patch228 -p1 -b .disable-openh264-download
 %patch229 -p1 -b .firefox-nss-addon-hack
+%patch230 -p1 -b .firefox-kde-webrender
 
 %patch402 -p1 -b .1196777
 %patch407 -p1 -b .1667096