&gt; Tell me, can you copy&#x2F;paste the &quot;𖥶&quot; character with the mouse after double-clicking it in your browser?<p>No problem (Linux&#x2F;Firefox).<p>The Unicode standard is not static (unlike those old codepages mentioned by OP); it is being changed and improved continuously. Support for characters outside of the BMP (such as the one you mention) is mostly there, but it may not be at the level of the basic scripts supported by, say, Unicode 5.0. That is fine. New features in standards take time to implement (the same thing happens with HTML and CSS).<p>For developers Unicode support is there. Has been for years.