Rated 1 out of 5 stars

me encanta el plugin pero desde las ultimas actualizaciones de thunderbird, ha dejado de funcionar:

Error de lectura XML: entidad no definida
Ubicación: chrome://bordercolors-d/content/options.xul
Número de línea 41, columna 7: <label control="FrameStyle" value="&optionPanel.frameStyle;"/>
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This review is for a previous version of the add-on (1.1.0). 

Indeed the options were broken for the Spanish language. Version 1.1.1 fixes the issue and should be available shortly. Otherwise, it's already on GitHub under "Releases".