Rated 4 out of 5 stars

C'est complètement inutile jusqu'au 1er courriel reçu en cap's lock. ;)
Il reste les caractères hors assci mais ça soulage déjà les yeux. Merci.
Perso, je préférerais que l'extension ne touche pas le titre mais que le corps du message (comme maintenant).

GREAT IDEA ! Rated 5 out of 5 stars

SOMETIMES IT MAY BE THOUGH A PLEASURE TO HAVE A STYLE CAPITALIZE AN IDEA, LIKE hate OR LOVE !..Sorry for the joke. In fact this add-on is met at a time friends and I were debating over fonts, styles and how someone uses them to express a feeling.
Nice idea, well carried out.

EDIT after developer's reply : Now that's a nice trip for a smile. That's when we say "Et voila" ! -- :), I love it!

Thanks for the review

In my opinion, caps do express a feeling but often bad :(. For the story, didn't understood the joke untill i went here. CapsKillers filtered the caps in the new review alert e-mail :).