JsonFx browser compatibility well exceeds A-Grade browsers from Yahoo! Graded Browser Support. Virtually any browser that supports JSON serialization is compatible with JsonFx.

Client-Side IE Firefox Safari Chrome Opera Netscape Mozilla Camino iCab
Ajax Requests 5.5+ 1.0+ 419+ 0.2+ 8.0+ 7.0+ 1.0.1+ 1.0+ 3.0+
JSON-RPC Services 5.5+ 1.0+ 419+ 0.2+ 8.0+ 7.0+ 1.0.1+ 1.0+ 3.0+
Client-Side Templating 5.5+ 1.0+ 522+ 0.2+ 8.0+ 7.0+ 1.0.1+ 1.0+ 4.0+
Client-Side Localization 5.5+ 1.0+ 522+ 0.2+ 8.0+ 7.0+ 1.0.1+ 1.0+ 4.0+
CssUserAgent 5.5+ 1.0+ 522+ 0.2+ 8.0+ 7.0+ 1.0.1+ 1.0+ 4.0+
Ajax History 5.5+ 1.0+ 522+ 0.2+ 9.0+ 7.0+ 1.0.1+ 1.0.3+ 4.0+

JsonFx server components are compatible with Microsoft .NET 2.0 and beyond. Mono Framework 2.4 compatibility is nearly complete for hosting on non-Microsoft Operating Systems.