diff --git a/common/locale/en-US/pattern.xml b/common/locale/en-US/pattern.xml
index 79fdd300..ebcee4f5 100644
--- a/common/locale/en-US/pattern.xml
+++ b/common/locale/en-US/pattern.xml
@@ -27,7 +27,7 @@
     </li>
     <li>
         Backtracks to the first successful match after pressing backspace,
-        unlike &dactyl.host;, which will always continue from the last match..
+        unlike &dactyl.host;, which will always continue from the last match.
     </li>
     <li>
         Supports reverse incremental search.
diff --git a/common/locale/en-US/tabs.xml b/common/locale/en-US/tabs.xml
index 9beab050..a8ea36e8 100644
--- a/common/locale/en-US/tabs.xml
+++ b/common/locale/en-US/tabs.xml
@@ -323,7 +323,7 @@
     <tags>D</tags>
     <spec><oa>count</oa>D</spec>
     <description short="true">
-        <p>Like <k>d</k> but selects the tab to the left of the deleted tabs after deletion..</p>
+        <p>Like <k>d</k> but selects the tab to the left of the deleted tabs after deletion.</p>
     </description>
 </item>
 
diff --git a/common/modules/highlight.jsm b/common/modules/highlight.jsm
index d93f4e5b..ec818889 100644
--- a/common/modules/highlight.jsm
+++ b/common/modules/highlight.jsm
@@ -197,7 +197,7 @@ const Highlights = Module("Highlight", {
      *   CSSLines  ::= CSSLine | CSSLine "\n" CSSLines
      *
      * Where Class is the name of the sheet, Selector is the CSS
-     * selector for the style, Site is the comma-separated list of site
+     * selector for the style, Sites is the comma-separated list of site
      * filters to apply the style to.
      *
      * If Selector is not provided, it defaults to [dactyl|highlight~={Class}].