--- a/browser/browser/preferences/preferences.ftl
+++ b/browser/browser/preferences/preferences.ftl
@@ -641,17 +641,17 @@ content-blocking-toggle-on =
     .tooltiptext = Désactiver le blocage du contenu
 content-blocking-toggle-off =
     .tooltiptext = Activer le blocage de contenu
 # "Slow" in this instance means "slow to load on the network".
 # FastBlock is a feature that blocks requests to tracking sites if they
 # have not finished loading after a certain threshold of seconds.
 content-blocking-fastblock-label = Traqueurs qui ralentissent
     .accesskey = T
-content-blocking-fastblock-description = Bloquer les contenus tiers mettant plus de 5 secondes à charger.
+content-blocking-fastblock-description = Bloquer les contenus tiers mettant plus de 5 secondes à charger.
 content-blocking-fastblock-option-enabled =
     .label = Toujours bloquer
 content-blocking-fastblock-option-disabled =
     .label = Ne jamais bloquer
 content-blocking-tracking-protection-label = Traqueurs
     .accesskey = T
 content-blocking-tracking-protection-description = Bloque tous les traqueurs connus (remarque : cela peut empêcher le chargement de certaines pages).
 content-blocking-tracking-protection-option-enabled =