Browser-Bugs.md

@@ -135,6 +135,9 @@ in our issue tracker.
 
 [MathJax Tracking Bug](https://bugs.webkit.org/show_bug.cgi?id=84012)
 
+* STIX fonts do not work with Opera and Safari.
+  See [issues 265](https://github.com/mathjax/MathJax/issues/265).
+
 * Bad alignment in table cells with "vertical-align: top"
   See [bug 90335](https://bugs.webkit.org/show_bug.cgi?id=90335) and [issue 253](https://github.com/mathjax/MathJax/issues/253)
 
@@ -215,3 +218,6 @@ in our issue tracker.
 
 * Make foreignObject support HTML and MathML
     Bug report ID is DSK-365197.
+
+* STIX fonts do not work with Opera and Safari.
+  See [issues 265](https://github.com/mathjax/MathJax/issues/265).
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