diff -urN seamonkey-2.53.4-orig/mozilla/gfx/thebes/gfxFontEntry.cpp seamonkey-2.53.4/mozilla/gfx/thebes/gfxFontEntry.cpp
--- seamonkey-2.53.4-orig/mozilla/gfx/thebes/gfxFontEntry.cpp	2020-04-01 20:01:50 +0900
+++ seamonkey-2.53.4/mozilla/gfx/thebes/gfxFontEntry.cpp	2022-03-14 19:59:03 +0900
@@ -1506,10 +1506,7 @@
 
         // xxx - add whether AAT font with morphing info for specific lang groups
 
-        if (rank > aMatchData->mMatchRank
-            || (rank == aMatchData->mMatchRank &&
-                Compare(fe->Name(), aMatchData->mBestMatch->Name()) > 0))
-        {
+        if (rank > aMatchData->mMatchRank) {
             aMatchData->mBestMatch = fe;
             aMatchData->mMatchedFamily = this;
             aMatchData->mMatchRank = rank;