Thank you from Blockly!
Appearance
Fragment of a discussion from User talk:Inkbug
I see (I only tested in Firefox). According to this the direction:rtl;
handling is a bug in Firefox, and I hope it will be fixed soon. Until then, maybe add direction:rtl; text-anchor:end;
to .blocklyText
, and remove the text-anchor:end;
part in Firefox (based on some browser or feature detection script)?