Does not work anymore Puntuado con 1 de 5 estrellas

4.9.11 version does not work under WinXP. Uninstall and reinstall of the addon didn't help in any way. Useless! Had to manually install old version and turn off all autoupdates in Firefox. This of course is not a good idea.
Edit: @mig: Please fix the issue ASAP. Until then: Useless addon.

Esta valoración es de una versión anterior del complemento ( 

Could you just read dev comments or other review before posting ?