diff -up thunderbird-102.1.0/gfx/webrender_bindings/webrender_ffi.h.cbindgen-covers thunderbird-102.1.0/gfx/webrender_bindings/webrender_ffi.h
--- thunderbird-102.1.0/gfx/webrender_bindings/webrender_ffi.h.cbindgen-covers	2022-08-04 12:47:06.970587140 +0200
+++ thunderbird-102.1.0/gfx/webrender_bindings/webrender_ffi.h	2022-08-04 12:47:13.642579587 +0200
@@ -73,7 +73,6 @@ struct WrPipelineInfo;
 struct WrPipelineIdAndEpoch;
 using WrPipelineIdEpochs = nsTArray<WrPipelineIdAndEpoch>;
 
-const uint64_t ROOT_CLIP_CHAIN = ~0;
 
 }  // namespace wr
 }  // namespace mozilla